Dung khi can tinh nguoc tu muc tieu doanh thu ra so lead can, CPL toi da va ngan sach phai chi — kem 3 kich ban va nguong healthy tung buoc pheu. Kich hoat khi user nhac 'tinh KPI nguoc', 'CPL toi da la bao nhieu', 'can bao nhieu ngan sach', 'tinh nguoc tu doanh thu', 'muc tieu bao nhieu don', 'break-even ROAS'. Khong dung cho — phan bo ngan sach da co ra tung kenh va thang thi dung skill 61-budget-planning; lap media plan chi tiet theo funnel thi dung skill 54-media-plan.
Dung khi can tinh nguoc tu muc tieu doanh thu ra so lead can, CPL toi da va ngan sach phai chi — kem 3 kich ban va nguong healthy tung buoc pheu. Kich hoat khi user nhac 'tinh KPI nguoc', 'CPL toi da la bao nhieu', 'can bao nhieu ngan sach', 'tinh nguoc tu doanh thu', 'muc tieu bao nhieu don', 'break-even ROAS'. Khong dung cho — phan bo ngan sach da co ra tung kenh va thang thi dung skill 61-budget-planning; lap media plan chi tiet theo funnel thi dung skill 54-media-plan.
metadata
{"version":"2.1.1","category":"performance"}
triggers
["tinh KPI","can bao nhieu ngan sach","tinh nguoc tu doanh thu","ngan sach de dat X don","budget calculator","KPI calculator","CPL toi da bao nhieu","break-even ROAS","LTV CAC"]
output
File .md gom bang tinh 3 kich ban, phan tich do nhay, break-even, phan bo ngan sach theo giai doan + kenh, va timeline ROI
Muc tieu la gi? (Doanh thu X trieu/thang? Hay ngan sach co san X trieu va muon biet duoc bao nhieu don?)
San pham / dich vu va gia ban? (Gia trung binh 1 don hang — AOV)
Nganh hang va kenh hien tai? (Nganh gi? Dang chay kenh nao? Co du lieu CPMess/CPL hien tai khong?)
Thoi gian chien dich? (1 thang? 3 thang? 6 thang? Co pha theo giai doan khong?)
2 huong tinh
Huong 1 — Tinh nguoc (Reverse): Tu doanh thu → Ngan sach
Dung khi: "Toi muon dat 200 trieu/thang — can bao nhieu tien ads?"
Doanh thu muc tieu
/ AOV (gia tri don trung binh)
= SO DON CAN
/ Ti le Booking→Customer
= SO BOOKING CAN
/ Ti le Lead→Booking
= SO LEAD CAN
/ Ti le Mess→Lead
= SO TIN NHAN CAN
x CPMess
= NGAN SACH ADS CAN
Huong 2 — Tinh xuoi (Forward): Tu ngan sach → Doanh thu
Dung khi: "Toi co 50 trieu — chay duoc bao nhieu don?"
Ngan sach
/ CPMess
= SO TIN NHAN DU KIEN
x Ti le Mess→Lead
= SO LEAD DU KIEN
x Ti le Lead→Booking
= SO BOOKING DU KIEN
x Ti le Booking→Customer
= SO DON DU KIEN
x AOV
= DOANH THU DU KIEN
Unit economics — tinh TRUOC khi chay dong ads dau tien
Hai huong tinh o tren cho biet can bao nhieu tien. Phan nay cho biet bao nhieu la lo. Phai thuoc long truoc khi bat bat ky campaign nao.
Bo cong thuc day du
So don can = Doanh thu muc tieu / AOV
So lead can = So don can / Close rate (Lead -> Mua)
Max CPL (hoa von) = (Doanh thu muc tieu x Gross margin %) / So lead can
CPL target (co lai) = Max CPL / 1.5
Break-even ROAS = 1 / Gross margin %
Target ROAS = Break-even ROAS x 1.5 (bien an toan)
Ngan sach ads can = So lead can x CPL target
CAC = Tong chi phi ads / So khach hang moi
LTV = AOV x Tan suat mua/nam x So nam giu chan
LTV : CAC = LTV / CAC (nguong khoe: >= 3:1)
Payback period = CAC / (Loi nhuan gop moi khach moi thang)
Gross margin = (Doanh thu - COGS) / Doanh thu. Khong biet gross margin thi khong tinh duoc gi ca — hoi user truoc.
Vi du so cu the — khoa hoc online
Gia dinh: AOV 3,000,000d · Gross margin 70% · Close rate Lead->Mua 30% · Muc tieu 300,000,000d/thang.
Buoc
Cong thuc
Ket qua
So don can
300,000,000 / 3,000,000
100 don
So lead can
100 / 30%
334 lead
Max CPL (hoa von)
(300,000,000 x 70%) / 334
~628,000d
CPL target (co lai)
628,000 / 1.5
~419,000d
Break-even ROAS
1 / 0.7
1.43x
Target ROAS
1.43 x 1.5
2.14x
Ngan sach ads
334 x 419,000
~140,000,000d
Kiem tra lai
300,000,000 / 140,000,000
ROAS 2.14x — khop
Doc so nay the nao: CPL cham 628K la hoa von, cham 419K la co lai. Neu thi truong dang cho CPL 700K → khong chay, phai sua offer, sua AOV, hoac sua gross margin truoc.
LTV : CAC — quyet dinh co duoc scale khong
Ti le LTV:CAC
Y nghia
Hanh dong
< 1:1
Lo tren moi khach hang
DUNG scale. Sua san pham hoac gia truoc
1:1 - 3:1
Hoa von den kha thi
Toi uu conversion, tang AOV — chua scale
> 3:1
Khoe — co the tang truong
Bat dau scale co kiem soat
> 5:1
Rat tot
Tang ngan sach ads manh
Payback period (thoi gian hoan von CAC) nen < 6 thang voi SME Viet Nam. Payback dai hon = dong tien bi ket, du ROAS dep van chet.
Nguong healthy tung buoc — canh bao va dung
Moi buoc trong pheu co nguong rieng. Kiem hang ngay khi ads dang chay; buoc nao vuot nguong DUNG thi xu ly buoc do truoc, khong do them tien.
Chi so
Khoe
Canh bao
DUNG
Hanh dong khi cham nguong dung
CPL / CPMess
<= target
> 1.5x target
> 2x target
Pause adset, chay 21-audit-ads-performance
ROAS
>= Target ROAS
< Break-even x 0.8
< Break-even
Review offer va gia truoc khi doi creative
CTR (Meta)
>= 1.5%
< 0.8%
< 0.5%
Thay creative — van de o hook, khong phai o target
Frequency
< 2.0
2.0 - 2.5
> 3.0
Thay creative va mo rong tep
Mess -> Lead
>= benchmark nganh
thap hon benchmark 15%
thap hon benchmark 30%
Van de o sale/tu van, khong phai o ads
Lead -> Booking
60-75%
40-60%
< 40%
Sua quy trinh follow-up, toc do reply
Booking -> Customer
40-55%
25-40%
< 25%
Van de o trai nghiem va gia, khong phai o marketing
Luat doc nguong: khi nhieu buoc cung do, sua buoc gan tien nhat truoc (Booking->Customer), roi lui dan ve dau pheu. Sua CPL truoc khi sua close rate la dot tien nhanh hon.
KPI theo tang pheu — do o dau
Tang
KPI chinh
Nguong tham chieu
Do o dau
Awareness
CPM, Reach, Video view
CPM theo nganh va mua vu
Ads Manager
Consideration
CTR, CPC, Landing view
CTR >= 1.5% (Meta)
Ads Manager
Conversion
CPMess, CPL, CPA
Theo bang benchmark ben duoi
Ads Manager + CRM
Revenue
ROAS, Doanh thu
>= Target ROAS da tinh
CRM / so ban hang
Benchmark Vietnam 2025–2026
Ti le chuyen doi theo nganh
Buoc
Trung binh chung
Beauty & Spa
F&B
Education
E-commerce
BDS
Mess→Lead
50–60%
55–65%
45–55%
40–50%
N/A
35–45%
Lead→Booking
50–60%
55–65%
40–55%
N/A
N/A
10–20%
Booking→Customer
30–40%
40–55%
N/A
5–15%
1–3%
5–15%
Customer→Re-purchase (90d)
15–25%
20–35%
25–40%
N/A
10–20%
N/A
CPMess / CPL theo kenh
Kenh
CPMess Kem
CPMess TB
CPMess Tot
CPMess Xuat sac
Meta (Facebook + IG)
>40K
25–40K
18–25K
<18K
TikTok
>45K
28–45K
20–28K
<20K
Google (CPL)
>200K
85–150K
50–85K
<50K
Zalo (CPMess broadcast)
N/A
~500d/mess
~300d/mess
<200d/mess
CPL va ROAS theo nganh (de doi chieu Max CPL vua tinh)
Nganh
CPL trung binh
ROAS thuong thay
CTR Meta
Khoa hoc online
50K – 200K
3 – 8x
1.5 – 3%
Beauty / Skincare
50K – 300K
3 – 7x
1.5 – 3%
F&B / Nha hang
30K – 100K
3 – 6x
1 – 2.5%
E-commerce fashion
—
2 – 5x
1 – 2%
BDS
200K – 2 trieu
—
0.5 – 1.5%
SaaS / B2B
500K – 3 trieu
3 – 10x
0.5 – 1.5%
Cach dung: so sanh Max CPL vua tinh voi khoang CPL cua nganh. Neu Max CPL thap hon dai duoi cua nganh → mo hinh chua chay duoc bang ads, phai sua AOV / margin / close rate truoc, khong phai sua creative.
Luu y mua vu
Thoi diem
Anh huong CPM
Tet Nguyen Dan (T1–T2)
+30–50%
Black Friday / 11.11 / 12.12
+20–30%
He (T6–T8)
+10–15%
Thang binh thuong
Baseline
Bang tinh 3 kich ban
Cau truc 3 kich ban
Chi so
Pessimistic (Xau)
Base (Co so)
Optimistic (Tot)
CPMess
TB nganh + 30%
TB nganh
TB nganh - 20%
Mess→Lead
TB nganh - 15%
TB nganh
TB nganh + 15%
Lead→Booking
TB nganh - 10%
TB nganh
TB nganh + 10%
Booking→Customer
TB nganh - 10%
TB nganh
TB nganh + 10%
Template bang tinh (vi du: Spa, AOV 500K, muc tieu 200 trieu/thang)
Buoc
Pessimistic
Base
Optimistic
Doanh thu muc tieu
200,000,000
200,000,000
200,000,000
AOV
500,000
500,000
500,000
So don can
400
400
400
Booking→Customer
36%
45%
55%
So booking can
1,111
889
727
Lead→Booking
47%
60%
69%
So lead can
2,364
1,481
1,054
Mess→Lead
47%
60%
69%
So tin nhan can
5,030
2,469
1,527
CPMess
39,000
30,000
24,000
Ngan sach ads
196,170,000
74,070,000
36,648,000
ROAS du kien
1.02x
2.70x
5.46x
Doc ket qua
Pessimistic: Can ~196 trieu ads cho 200 trieu doanh thu — ROAS <1, lo
Base: Can ~74 trieu ads — ROAS 2.7x, chap nhan duoc
Optimistic: Can ~37 trieu ads — ROAS 5.5x, rat tot
Dung so Base de lap ke hoach. Dung so Pessimistic de du phong. Dung so Optimistic de dat muc tieu toi uu.
Sensitivity Analysis (Phan tich do nhay)
Bien nao anh huong nhieu nhat? Tang/giam 10% moi bien va xem ngan sach thay doi bao nhieu:
Template
Bien
Gia tri Base
Thay doi +10%
Ngan sach moi
Thay doi ngan sach
CPMess
30K
33K
+10%
Truc tiep 1:1
Mess→Lead
60%
66%
-9%
Anh huong lon
Lead→Booking
60%
66%
-9%
Anh huong lon
Booking→Customer
45%
49.5%
-9%
Anh huong lon
AOV
500K
550K
-9% (it don hon)
Gian tiep
Nhan dinh
Quy tac 80/20: Thuong 2 bien anh huong nhieu nhat la:
CPMess — phu thuoc creative + targeting → toi uu bang A/B test ads
Mess→Lead — phu thuoc chat luong tu van → toi uu bang script chot + toc do reply
Bien de cai thien nhat: [Xep hang tu de den kho]
Bien
Muc do cai thien
Cach cai thien
CPMess
De — test creative
A/B test 3–5 creative/tuan, doi hook, doi format
Mess→Lead
De — cai script
Training team, script chuan, reply <5 phut
Lead→Booking
Trung binh — cai quy trinh
Follow-up 3 lan, noi dung nurture, uu dai
Booking→Customer
Kho — cai trai nghiem
Chat luong dich vu, first impression, upsell
Break-even (Diem hoa von)
Cong thuc
Break-even don = Chi phi co dinh / (AOV - Chi phi bien doi moi don)
Break-even ngay = Break-even don / So don trung binh moi ngay
Template break-even
Hang muc
Gia tri
Chi phi co dinh/thang
— Ngan sach ads
[X]
— Content production
[X]
— Nhan su MKT
[X]
— Tool (CRM, email, design)
[X]
— UGC/KOL
[X]
Tong chi phi co dinh
[X]
AOV
[X]
Chi phi bien doi/don
[X] (van chuyen, hoa hong, COGS)
Loi nhuan/don
AOV - Chi phi bien doi = [X]
Break-even don
Tong CF co dinh / Loi nhuan moi don = [X don]
Break-even ngay
Break-even don / 30 = [X ngay]
Danh gia
Ket qua
Y nghia
Hanh dong
Break-even < 50% so don du kien
An toan — du bien do loi nhuan
Co the scale ngan sach
Break-even = 50–80% so don du kien
Chat — it du bien do
Toi uu chi phi truoc khi scale
Break-even > 80% so don du kien
Rui ro cao — de lo
Giam chi phi hoac tang AOV
Phan bo ngan sach theo giai doan
4 giai doan chien dich
Giai doan
% Ngan sach
Thoi gian
Muc dich
KPI chinh
Teasing
15%
Tuan 1
Gay to mo, xay awareness
Reach, Video View, Save
Bung nhe
20%
Tuan 2
Test creative, thu lead dau tien
CPMess, Lead, A/B test
Bung manh
40%
Tuan 3–4
Scale creative thang, chot don
ROAS, So don, Revenue
Duy tri
25%
Tuan 5+
Retarget, nurture, re-purchase
CPA, LTV, Retention
Template phan bo
Vi du: Ngan sach 80 trieu/thang
Giai doan
%
So tien
Tuan
Ngan sach/ngay
Teasing
15%
12,000,000
Tuan 1 (7 ngay)
1,714,000/ngay
Bung nhe
20%
16,000,000
Tuan 2 (7 ngay)
2,286,000/ngay
Bung manh
40%
32,000,000
Tuan 3–4 (14 ngay)
2,286,000/ngay
Duy tri
25%
20,000,000
Tuan 5+ (con lai)
Tuy so ngay
Phan bo ngan sach theo kenh
Khuyen nghi theo nganh
Kenh
Beauty/Spa
F&B
Education
E-commerce
BDS
Meta (Facebook + IG)
50–60%
40–50%
45–55%
35–45%
50–60%
TikTok
25–35%
30–40%
20–30%
35–45%
10–20%
Google
10–15%
5–10%
20–30%
15–20%
25–35%
Zalo OA
5–10%
5–10%
5–10%
0–5%
5–10%
Nguyen tac phan bo
Kenh da chung minh hieu qua → 60–70% ngan sach. Khong dan deu.
Kenh moi / test → 15–20% ngan sach. Du de co du lieu, khong qua nhieu de mat tien.
Retarget → 10–15% ngan sach. Nham lai nguoi da tuong tac — thuong ROAS cao nhat.
Chuyen kenh khi ROAS < 2x sau 2 tuan. Khong cho doi qua lau.
Template phan bo thang
Kenh
% Ngan sach
So tien
KPI muc tieu
KPI do luong
Meta — Reach/Awareness
[X]%
Reach, Video View
CPM, CPV
Meta — Conversion
[X]%
Mess, Lead
CPMess, CPL
Meta — Retarget
[X]%
Don hang
ROAS, CPA
TikTok — Reach
[X]%
View, Follower
CPV, Cost/Follower
TikTok — Conversion
[X]%
Mess, Lead
CPMess
Google — Search
[X]%
Click, Lead
CPC, CPL, Conv rate
Zalo OA
[X]%
Read, Click
Cost/mess, Read rate
Tong
100%
ROI Projection Timeline
Khi nao thay ket qua?
Giai doan
Thoi gian
Ky vong
Chi so theo doi
Testing
Tuan 1–2
Chua co don, dang test creative + audience
CPM, CTR, CPMess
First results
Tuan 3–4
Don dau tien, ROAS con thap
So mess, so lead, don dau
Optimization
Thang 2
ROAS cai thien, bat dau on dinh
ROAS, CPA
Scale
Thang 3+
ROAS on dinh, tang ngan sach co kiem soat
ROAS duy tri, Revenue tang
Mature
Thang 6+
he thong tu chay, co data du de forecast
LTV, Retention, Organic %
Quy tac ngon tay cai
Quy tac
Giai thich
2 tuan dau = mat tien
Day la chi phi hoc — dung hoang, dung tat ads
ROAS Base dat o thang 2
Thang 1 la thang test — khong danh gia ROAS thang 1
Tang ngan sach toi da 20%/tuan
Tang nhanh hon = performance giam, CPM tang
ROAS giam 30% khi scale
Binh thuong — audience rong hon = ti le chuyen doi thap hon
Retarget ROAS cao gap 2–3x Prospecting
Dung de nham, retarget luon la kenh ROAS tot nhat
Tong ngan sach marketing — khong chi ngan sach ads
Con so tinh nguoc o tren la ngan sach ads. Tong ngan sach marketing con nhieu khoan khac — bo qua se vo ke hoach giua ky.
3 phuong phap dat ngan sach
Phuong phap
Cach tinh
Uu
Nhuoc
% doanh thu
Ngan sach = X% doanh thu ky vong
Don gian, de duyet
Khong phan anh giai doan tang truong
Tinh nguoc tu muc tieu
Dat doanh thu → tinh nguoc ra CAC va ngan sach (phan tren)
Co can cu, bao ve duoc truoc CEO
Can biet CAC / CVR lich su
Theo doi thu
Benchmark ngan sach nganh (08-nghien-cuu-doi-thu)
Tranh dau tu duoi nguong
Khong phan anh dieu kien rieng
Khuyen nghi: dung phuong phap tinh nguoc lam chinh, dung 2 phuong phap con lai de kiem tra cheo. Lech qua 50% giua 3 cach → xem lai gia dinh.
Co cau tong ngan sach (tham chieu SME Viet Nam)
Khoan muc
% tong ngan sach
Meta Ads (FB + IG)
50 – 60%
TikTok Ads
15 – 20%
Google Ads / SEO
10 – 15%
San xuat content
10 – 15%
KOL / KOC / Seeding
5 – 10%
Email / CRM / tool
2 – 5%
Chi tiet ke hoach phan bo theo kenh va thang → 54-media-plan. Ke hoach ngan sach ca nam va bao ve truoc ban lanh dao → 61-budget-planning.
KPI theo 3 tang nguoi dung
Cung mot chien dich nhung moi tang xem so khac nhau. Bao cao sai tang = nguoi doc khong hanh dong duoc.
O : Tang doanh thu khoa hoc len 500 trieu/quy
KR1: Dat 500 lead/thang voi CPL <= 200K
KR2: Ti le chot don >= 30%
KR3: AOV tang len 3.5 trieu (upsell)
→ KPI Meta Ads : CPMess <= 25K, CTR >= 2%
→ KPI Content : 40 bai/thang, ER >= 5%
Quy tac: moi KR phai co it nhat 1 KPI kenh gan vao. KR khong gan duoc KPI kenh nao = KR khong ai chiu trach nhiem.
Nhip review KPI
Nhip
Lam gi
Hang ngay (15 phut)
Doi chieu CPL/CPMess vs target → scale hoac pause; kiem frequency; kiem pace spend
Hang tuan (thu 2)
Keo data 7 ngay → winner scale +20%, loser pause + ghi ly do; brief creative moi neu frequency cao
Hang thang
Cap nhat lai CVR thuc te vao bang tinh — thay benchmark bang so cua chinh minh
Hang quy
Tinh lai toan bo unit economics: AOV, margin, LTV, CAC co thay doi khong
Nguyen tac: co so cua chinh minh thi khong dung benchmark nganh nua. Benchmark chi de khoi dau va de doi chieu khi lech bat thuong.
Cross-reference
Can ke hoach tong the chua? → Dung 00-ke-hoach-mkt truoc, roi quay lai tinh KPI
Can bao cao hieu suat hien tai de dieu chinh? → Dung 03-danh-gia-hieu-suat hoac 07-bao-cao-marketing
Can biet doi thu chi bao nhieu? → Dung 08-nghien-cuu-doi-thu
Can hieu khach hang de tinh ti le chuyen doi chinh xac hon? → Dung 09-insight-khach-hang
Can phan tich du lieu sau khi chay? → Dung 13-phan-tich-du-lieu
Can bien so ngan sach thanh ke hoach kenh theo thang? → Dung 54-media-plan
Can ke hoach ngan sach ca nam / bao ve truoc ban lanh dao? → Dung 61-budget-planning
CPL vuot nguong DUNG, can tim nguyen nhan? → Dung 21-audit-ads-performance
Checklist chat luong
Truoc khi giao bao cao, kiem tra:
Da xac dinh dung huong tinh (nguoc tu doanh thu hay xuoi tu ngan sach)
Benchmark dung nganh, dung kenh — khong dung so chung
Co du 3 kich ban: Pessimistic, Base, Optimistic
Sensitivity analysis chi ra bien nao anh huong nhieu nhat + cach cai thien
Break-even duoc tinh va danh gia muc do rui ro
Phan bo ngan sach theo giai doan co timeline cu the (tuan/thang)
Phan bo kenh co ty le phu hop voi nganh va muc tieu
ROI timeline thuc te — khong hua ROAS cao tu tuan 1
Tong ngan sach khop giua cac bang (giai doan + kenh + tong = khop nhau)
Co ghi chu mua vu neu chien dich roi vao dip dac biet (Tet, 11.11, etc.)
Da hoi gross margin — khong tinh Max CPL / Break-even ROAS khi thieu so nay
Co du 4 so: Max CPL, CPL target, Break-even ROAS, Target ROAS
Da doi chieu Max CPL voi khoang CPL cua nganh — neu thap hon, canh bao user truoc khi chay
Co LTV:CAC va payback period, kem ket luan co duoc scale hay khong
Co bang nguong khoe / canh bao / DUNG cho tung buoc pheu
Tong ngan sach marketing gom ca content, KOL, tool — khong chi ngan sach ads
KPI duoc trinh bay dung tang nguoi doc (CEO / Lead / Executor)
