In the pack: ChatGPT, Claude & Gemini Prompts for Small Business Owners
Break-Even and Profit-per-Job Calculator
Prompt
Average price per sale or job: {{AVERAGE_PRICE}}
Variable costs per sale (materials, commissions, card fees, delivery, subcontractors): {{VARIABLE_COSTS}}
Fixed monthly costs (rent, salaries including mine, insurance, software, loans): {{FIXED_COSTS}}
Current sales or jobs per month: {{CURRENT_VOLUME}}
Calculate and explain:
1. Contribution per sale (price minus variable costs) and contribution margin percent.
2. Break-even sales per month, and per week.
3. Profit at my current volume.
4. A sensitivity table showing profit if the price rises 5% and 10%, if variable costs rise 10%, and if volume falls 20%.
5. In plain English: which lever (price, cost or volume) moves profit the most for my business, and one practical step for that lever.
Rules: show every formula with my numbers in it. If I've left my own pay out of fixed costs, point it out and show the result both ways. Round sensibly and state assumptions.
Customize this prompt
Fill in the variables below to personalize this prompt:
Model Settings
Recommended Models
Temperature
Max Tokens
Additional Notes
About this prompt
“Break-Even and Profit-per-Job Calculator” is a free prompt for ChatGPT in the Business category, 178 words long, added to The Prompt Index on October 28, 2026 by The Prompt Index. Copy it with the button above, paste it into ChatGPT or any other AI chat assistant, and send it.
It has 4 placeholders to fill in first:
{{AVERAGE_PRICE}}, {{VARIABLE_COSTS}}, {{FIXED_COSTS}}, {{CURRENT_VOLUME}}.
Use the “Customize this prompt” fields to personalise it before you copy.
Recommended models: ChatGPT, Claude, Gemini.
0 upvotes, sent to an AI tool 0 times, viewed 5 times.
Browse all Business prompts, the AI prompt database or use the AI prompt finder to search every prompt.