Reports & charts — Report on a period, and compare it (2)

Growth from nothing says up from nothing rather than inventing a percentage, and a group that wasn't there last time reads new. The arrow shows direction only — a report has no way of knowing whether the column is revenue or refunds. Periods are resolved on the workspace's timezone, so two people in different countries see the same set of records, and the window is half-open, so two adjacent quarters never double-count the day between them. Which one you pick changes what “compared to” means — and both leave the day a period ends on to the next period.