Calculate
Big Ambitions Profit Calculator
Enter revenue and operating costs to calculate daily profit, margin and break-even. Test one financial change without rebuilding your whole business.
Quick calculation
How much is the business actually making?
Add more costs
Optional business context
Where the entered money goes
The breakdown includes entered costs only. A large cost is not automatically a bad cost; check whether it produces enough value before cutting it.
Breakdown of entered costs only
- Product costs
- —
- Not entered
- Payroll
- —
- Not entered
- Rent
- —
- Not entered
- Marketing
- —
- Not entered
- Licensing
- —
- Not entered
- Theft / losses
- —
- Not entered
- Other operating costs
- —
- Not entered
Test one financial change
This is arithmetic what-if. Revenue is held constant unless you explicitly test revenue; demand, staffing and customer behavior are not predicted.
Optional
Unit economics
Calculate contribution per unit and the units needed to cover entered fixed operating costs.
Break-even units = entered fixed operating costs ÷ contribution per unit. Unit cost is not counted twice. Units sold and customer response are not assumed.
What do you need next?
Continue in Simulator
Carry only the financial values you entered. Missing values stay missing.
完全版シミュレーターで続ける →How the Big Ambitions profit calculator works
Revenue is not profit. The calculator subtracts the product or resource costs, payroll, rent, marketing, licensing and theft or losses that you enter. A blank field remains unknown; entering zero confirms that the cost does not apply.
The known-cost break-even result shows the revenue needed to cover entered costs. Unit economics uses selling price minus variable unit cost to calculate contribution per unit, then divides entered fixed operating costs by that contribution. It does not predict whether customers will keep buying after a price change.
Use the Profit Guide when you need to diagnose why a margin is weak. Use the full Simulator when price, demand, staffing, capacity or marketing may change customer behavior and sales.
What if I do not know one of my costs?
Leave it blank. The page shows a known operating result and keeps final profit incomplete until required costs are entered or explicitly confirmed as zero.
Does increasing price always increase profit?
No. This calculator can show the arithmetic effect if unit sales stay unchanged. The Simulator is needed for demand and purchase-response effects.
Should payroll and marketing be included?
Yes, when they apply to the period being calculated. They are operating costs and affect profit and break-even.