Reports & charts — Report on a period, and compare it

Pick the field that decides whether a record falls in the period — an order has an ordered date, a shipped date and a paid date, and each gives a different answer, so RowFold asks rather than guessing. Then pick the window: This month, Last month, This quarter, This year, Last 7/30/90 days, Last 12 months, or All time — eight windows and the default. Then answer “compared to what”. Previous period steps back by the window's own kind — this February against January entire, not against 28 days straddling two months — and Same period last year is the one a seasonal business usually wants, since December against November says little about a toy shop. Each KPI and each group then carries its change.