{"id":"sheet-re-sold-listings-insights-math","audience":"real-estate","category":"spreadsheets","track":"data","technique":"verification","title":"Turn a sold-listings table into three insights with the math","free":false,"task":"You're preparing talking points for a seller in Maple Heights. Write exactly 3 numbered lines, each showing its math first and a short takeaway after: 1) average days on market for sold homes, 2) how many sold at or above list price, 3) average days on market for homes listed at $500k or more vs. under $500k. Count only homes that sold. Plain text, under 130 words.","materialLabel":"Your Q3 listings table (attached to your prompt automatically)","material":"Maple Heights - listings closed or ended, Q3 2026\n\nAddress | List price | Sold price | Days on market | Status\n412 Elm St | $400,000 | $410,000 | 12 | Sold\n18 Birch Ln | $520,000 | $500,000 | 41 | Sold\n77 Cedar Ct | $380,000 | $390,000 | 9 | Sold\n5 Dogwood Dr | $600,000 | $570,000 | 55 | Sold\n230 Fir Ave | $450,000 | $450,000 | 18 | Sold\n9 Gum Rd | $700,000 | - | 90 | Withdrawn\n64 Hazel Way | $350,000 | $360,000 | 21 | Sold\n\nNotes:\n- Seller's home: 4 bed, thinking of listing at $525,000\n- My manager's newsletter said \"homes here sell in about 35 days\"\n- Meeting with the seller Thursday","rules":[{"type":"numberedItems","count":3},{"type":"maxWords","max":130},{"type":"plainText"}],"mistakes":[{"title":"Counting the withdrawn listing","why":"The AI averages all 7 rows and gets about 35 days, matching the newsletter but not the sales.","fix":"Add: \"Count only homes that sold.\"","checks":["r0"]},{"title":"Insights without math","why":"The AI says \"homes sell quickly\" with no numbers you can defend in front of a seller.","fix":"Show the shape: \"1. (12 + 41 + ...) / 6 = 25 days - takeaway\".","checks":["r0","r2"]},{"title":"Leaving out at-list sales","why":"The AI counts only homes that sold above list and misses 230 Fir.","fix":"Add: \"At or above list price.\"","checks":["r1"]},{"title":"Picking its own insights","why":"The AI writes 5 or 6 general observations instead of the 3 you need.","fix":"Name the 3 insights and say \"exactly 3 numbered lines.\"","checks":["numberedItems","maxWords"]},{"title":"Getting markdown back","why":"AI bolds numbers and adds headings.","fix":"Ask for \"plain text, no bold.\"","checks":["plainText"]}],"promptHints":[{"label":"Excludes the withdrawn home","patterns":["only.{0,20}sold","withdrawn","exclude"]},{"label":"Asks to show the math","patterns":["show (the )?math","math first","\\+.*=","working"]},{"label":"Names the 3 insights","patterns":["days on market","at or above","\\$?500"]},{"label":"Sets the shape","patterns":["\\b(3|three)\\b.{0,20}lines","exactly","numbered"]},{"label":"Asks for plain text","patterns":["plain","no bold","no markdown"]}],"hint":"Talking points need numbers you can defend. Say which rows count, which insights you want, and ask for the math on every line.","rubricLabels":["Line 1 shows the 6 sold homes' days added up and divided (12 + 41 + 9 + 55 + 18 + 21 = 156, 156 / 6 = 26 days), leaving out the withdrawn 9 Gum Rd (so not about 35)","Line 2 says 4 of 6 sold at or above list (412 Elm, 77 Cedar, 230 Fir at list, 64 Hazel)","Line 3 shows $500k-plus homes averaging (41 + 55) / 2 = 48 days vs. under-$500k homes averaging (12 + 9 + 18 + 21) / 4 = 15 days, with the math before the takeaway"]}