The Marketing Dollar ROI Question: What Your Marketing Data Really Shows (Member Post)

A marketing manager spent $62,000 in a quarter across six channels — and needed one clear answer, not twelve separate reports. Reconciling the numbers with Claude took minutes, not weeks, and surfaced a pattern hiding across two straight quarters: the channel getting the most budget was doing the least work. Below: what the data was for, how the reconciliation was built, and the exact Project setup and prompts to run this on your own numbers.