Class timetable

Everyone who scanned in at the door, less everyone who has checked out (exit scan, the app seeing their phone leave, "I've finished" or staff). Anyone who has not checked out counts as in for about as long as they usually stay (from their own past visits, or 90 minutes when we do not know yet), then as gone (longer if the app is asking them if they are still training). Members whose phone is at the gym with no scan in (they turned location on in the app) are counted too, shown separately as "at the gym, not scanned". So it is an estimate, not an exact head count. Quiet, steady and busy compare it with the busiest time of a usual Tuesday.