{"id":"fpa-customer-profit-after-support-cost-table","audience":"fpa","category":"finance-work","track":"finance","technique":"format","level":"intermediate","title":"Rank customers by profit after COGS and support cost","free":false,"task":"You're ranking customers by profit for the head of customer success. Write a prompt for a markdown table with columns Rank, Customer, Profit and Margin %, ranked by profit dollars (highest first). Profit = revenue minus COGS minus support cost at $50 per ticket, shown as an equation in the Profit cell. Margin % is profit divided by revenue, whole percent. Use the corrected ticket counts. Under 140 words.","materialLabel":"Source material (attached to your prompt automatically)","material":"CUSTOMER PROFITABILITY - Q3 2026\n\nSupport cost per ticket: $50 (fully loaded)\n\nCustomer | Revenue | COGS | Tickets\nAcme | $100,000 | $40,000 | 200\nBurke | $60,000 | $20,000 | 600\nCosta | $80,000 | $30,000 | 100\nDelta | $45,000 | $15,000 | 300\n\nCorrection from Support Ops, Nov 3: 150 of Burke's 600 tickets were duplicates created when a customer emailed two addresses; they were merged into other tickets. Burke's real ticket count is 450. The other counts are correct.\n\nNotes: Revenue is net of discounts. COGS includes hosting and third-party fees for the customer. Support cost is only ticket handling; account management is not allocated. The head of customer success will use the table in the Nov 12 account review, so it should show facts only without suggesting which accounts to drop.","rules":[{"type":"maxWords","max":140}],"promptHints":[{"label":"Names the columns","patterns":["rank","customer","profit","margin"]},{"label":"Uses the correction","patterns":["450","correct"]},{"label":"Sets the ranking basis","patterns":["profit dollars","highest first"]},{"label":"Shows the formula","patterns":["revenue","tickets","\\$50"]},{"label":"Caps length","patterns":["\\d+\\s*words","under \\d+"]}],"mistakes":[{"title":"Using Burke's 600 tickets","why":"The AI keeps the uncorrected count and ranks Burke last.","fix":"Say: \"Use the corrected ticket count: Burke is 450.\"","checks":["r1"]},{"title":"Ranking by margin percent","why":"The AI sorts by Margin %.","fix":"Add: \"Rank by profit dollars, highest first.\"","checks":["r0"]},{"title":"Hiding the equation","why":"The AI shows only the profit number.","fix":"Add: \"Show revenue - COGS - tickets x $50 in the Profit cell.\"","checks":["r1"]},{"title":"Giving advice","why":"The AI recommends action on Burke.","fix":"Add: \"Facts only; no recommendations.\"","checks":["r2"]},{"title":"Trusting the AI to count words","why":"AI is bad at counting and runs past word limits.","fix":"Ask for fewer words than the real cap and keep each part short.","checks":["maxWords"]}],"hint":"Rank by dollars, show the equation in each cell, and use the corrected ticket count.","rubricLabels":["The table has columns Rank, Customer, Profit, Margin % and ranks Acme, Costa, Burke, Delta in that order","Profit cells show Acme $100,000 - $40,000 - (200 x $50) = $50,000, Costa $45,000, Burke $60,000 - $20,000 - (450 x $50) = $17,500 and Delta $15,000","Margin % shows Acme 50%, Costa 56%, Burke 29% and Delta 33%, and nothing recommends dropping or keeping any account"]}