Contract ROI from measured shifts
Karinderya Worker break-even calculator
Enter one current contract and two comparable order rates to see whether the added contribution repays the Worker before the contract ends.
Break-even requires positive incremental profit per minute. The tool subtracts the baseline order rate, multiplies the additional orders by contribution per order, subtracts other per-minute costs and divides the current contract price by that gain. If the gain is zero or negative, it reports that the Worker cannot break even.
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Formula
How the result is calculated
- 01
Additional orders per minute = after-hire rate − baseline rate.
- 02
Incremental profit per minute = additional orders × contribution per order − other fixed cost.
- 03
Break-even minutes = Worker cost ÷ positive incremental profit per minute.
- 04
Contract profit = incremental profit × contract minutes − Worker cost; ROI = contract profit ÷ Worker cost.
Limits
What this tool cannot prove
- One test cannot prove a permanent Worker schedule or task.
- Different queues, layouts and server load can change the before/after rate.
- Contribution must include every known variable cost.
Visible answers
Frequently asked questions
What if incremental profit is zero or negative?
The calculator says the Worker cannot break even at the current inputs and does not display Infinity.
Should I use a Worker price from a video?
Only as a dated community lead. Use the current Hire panel for a current decision.
Are inputs uploaded?
No. Values remain in the browser and local save uses device storage.
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