But how does it know next week's rate until the current week is completed?
eg I might be on £90k last 52-wk gross and the "next week" rate shows 20%. But then I win £20k in the current week which means next week's rate should show 40%?
Edit - Or is that the point, perhaps it is a live variable based on your wks -1 to -51 plus your profit so far this week? If so then it would be so much better to show the actual profit value.