{"id":"revops-board-metrics-nrr-grr-payback","audience":"executives","category":"sales-work","technique":"constraints","track":"sales","level":"intermediate","title":"Compute NRR, GRR and CAC payback with the working shown","free":false,"task":"Compute three board metrics in exactly 3 lines in plain text, labeled NRR:, GRR: and CAC payback:. Show the working in each line, like \"NRR: (10.0 + 1.0 - 0.5) / 10.0 = 105%\". NRR and GRR use only the starting customers (exclude new-logo ARR). CAC payback is in months using gross-margin-adjusted new ARR. Round to whole numbers. No commentary.","materialLabel":"FY2026 inputs and definitions (attached to your prompt automatically)","material":"FY2026 inputs ($M):\n- Starting ARR (Jan 1): 10.0\n- Expansion ARR from those customers: 1.2\n- Contraction (downgrades): 0.3\n- Churned ARR: 0.7\n- New-logo ARR added in 2026: 2.0 (not part of NRR or GRR)\n- Sales and marketing spend 2026: 3.0\n- Gross margin: 75%\n\nDefinitions (Finance):\n- NRR = (starting ARR + expansion - contraction - churn) / starting ARR\n- GRR = (starting ARR - contraction - churn) / starting ARR (no expansion)\n- CAC payback (months) = S&M spend / (new-logo ARR x gross margin) x 12\n\nA slide draft says NRR is 122% because it divided (10.0 + 1.2 + 2.0 - ...) by 10.0 including new logos. That is wrong under the definition.","rules":[{"type":"plainText"},{"type":"maxWords","max":70}],"mistakes":[{"title":"Including new logos in NRR","why":"The AI gets 122%.","fix":"Add: \"NRR and GRR exclude new-logo ARR.\"","checks":["r1"]},{"title":"Adding expansion to GRR","why":"The AI includes the 1.2.","fix":"Add: \"GRR has no expansion.\"","checks":["r1"]},{"title":"Skipping gross margin","why":"The AI computes payback from raw ARR.","fix":"Add: \"Use gross-margin-adjusted new ARR, in months.\"","checks":["r2"]},{"title":"Commentary","why":"The AI adds interpretation.","fix":"Add: \"3 lines only, no commentary.\"","checks":["r0","plainText","maxWords"]}],"promptHints":[{"label":"Lists the labels","patterns":["nrr:","grr:","cac payback"]},{"label":"Asks for working","patterns":["show the working","working in each"]},{"label":"Excludes new logos","patterns":["exclude","new.logo"]},{"label":"Specifies units","patterns":["months","round","whole number"]},{"label":"No commentary","patterns":["no commentary","3 lines","only"]}],"hint":"Name the three lines, ask for the working and say which ARR is excluded.","rubricLabels":["Has exactly three lines labeled NRR:, GRR: and CAC payback: in that order with the working shown","NRR is (10.0 + 1.2 - 0.3 - 0.7) / 10.0 = 102 percent and GRR is (10.0 - 0.3 - 0.7) / 10.0 = 90 percent","CAC payback is 3.0 / (2.0 x 0.75) x 12 = 24 months, and new-logo ARR is not included in NRR or GRR"]}