Revenue × customer-mix projection. Companion to the cost calculator — that one is per-tenant COGS, this is the company-wide rollup. 36-month runway model with CAC payback.
Reading note. This model assumes a single founder + part-time eng for months 0-6, then ramps an additional eng + 1 sales hire at month 9. Adjust the sliders to model alternate hiring plans.
Inputs
Customer mix at steady state
Per-customer COGS
From cost calculator @ light ops, 99.5% SLA
People & opex (€/mo)
Includes benefits, equipment, 13th month. Belgium loaded cost.
Office, accounting, banking, software subscriptions not in cost-calc.
Growth assumptions
MRR (steady state)
€—
— customers
ARR
€—
× 12
Gross margin
—%
(MRR − COGS) / MRR
Operating margin
—%
after people + opex
Burn / mo
€—
if negative
Net / mo (steady)
€—
profit if positive
CAC payback
— mo
at average gross profit/customer
LTV / CAC
—
at current churn
Revenue & cost by tier (steady state)
Tier
Customers
MRR
COGS
Gross profit
GM%
36-month projection
Starts at month 0 with current customer mix as the steady state.
Linear ramp: 2 new/mo, 2% churn across the tier mix.
Headcount stays flat (adjust sliders for hiring scenarios).
Month
Customers
MRR
COGS
Opex
Net
Cum cash
Breakeven map
How many customers of each plan are needed to cover all opex (people + other + COGS)? Each row is "ONLY this plan" — useful as a single-tier-shop sanity check.