{"id":"fpa-store-sales-per-square-foot-ranking","audience":"fpa","category":"finance-work","track":"finance","technique":"format","level":"beginner","title":"Rank stores by sales per square foot using the new Mall size","free":false,"task":"You're comparing four stores for the retail director. Write a prompt for a markdown table with columns Rank, Store, Sales, Sq ft and Sales per sq ft (whole dollars), ranked highest first, followed by a last line starting \"Chain:\" showing total sales divided by total square feet, in whole dollars. Use the current Mall size. Sales per sq ft is sales divided by selling square feet. Under 80 words.","materialLabel":"Source material (attached to your prompt automatically)","material":"STORE PERFORMANCE - 2026 full-year sales\n\nDowntown: $1,200,000; 3,000 sq ft\nMall: $1,800,000; 4,000 sq ft in the store list\nAirport: $600,000; 1,000 sq ft\nSuburb: $900,000; 4,500 sq ft\n\nUpdate from Real Estate, Jan 12: the Mall store added 2,000 square feet of selling space in an expansion that opened Jan 2, before any 2026 sales.\n\nThe retail director is deciding where to focus visits next quarter. This table is a fact sheet only; the director will decide what to do with it. Sales are net of returns and discounts.","rules":[{"type":"maxWords","max":80}],"promptHints":[{"label":"Names the columns","patterns":["rank","store","sales","sq ft"]},{"label":"Uses the current size","patterns":["6,000","current","expanded"]},{"label":"Sets the ranking","patterns":["highest","rank"]},{"label":"Adds the chain line","patterns":["chain","total sales"]},{"label":"Caps length","patterns":["\\d+\\s*words","under \\d+"]}],"mistakes":[{"title":"Using the old Mall size","why":"The AI divides by 4,000 and gets $450.","fix":"Say: \"Use the Mall's current 6,000 sq ft.\"","checks":["r1"]},{"title":"Ranking by total sales","why":"The AI sorts by sales, not per sq ft.","fix":"Add: \"Rank by sales per sq ft, highest first.\"","checks":["r0"]},{"title":"Wrong chain math","why":"The AI averages the four ratios.","fix":"Add: \"Chain = total sales / total square feet.\"","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":"Watch for the update in the notes and say how the chain figure is computed.","rubricLabels":["The table has columns Rank, Store, Sales, Sq ft, Sales per sq ft and is ranked Airport $600, Downtown $400, Mall $300, Suburb $200 in that order","The Mall row shows 6,000 sq ft (the current size) and $300, not 4,000 sq ft and $450","The last line starts \"Chain:\" and shows $4,500,000 / 14,500 = $310"]}