The drawer is NPR 700 short and it is nine at night. Three people used the till. Nobody's sale has their name on it. The only available explanation is a mood, and moods are how staff leave.
The difference needs a name and a window
A shortage across a whole day, shared by everyone who touched the drawer, cannot be explained. A shortage between two o'clock and six, on the sales one person rang, can. The till has to record who took the payment. The handover has to be a count, not a story. Write the float you handed over, the cash the till expects, the cash in the drawer, and the difference. Do it when the shift ends, while both people are still there.
Closing the day is the same habit for a shop with one person. A shift is that habit cut into pieces so the pieces have owners.
What staff are allowed to touch
A cashier who can edit yesterday's bill, void without a trace, or open the product prices can make a drawer balance by changing the past. Permissions exist so the person on the shift can sell, and so the person who owns the shop can see a void. A discount typed in the open, on the bill, is a discount. A total that was quietly rounded is a leak.
Cash and QR should not share one pocket in your head. The QR never entered the drawer. If the close compares every payment method against one pile of notes, the QR sales look like missing cash. Split them. The notes are checked against cash sales. The QR is checked against the statement, which is a different piece of paper and often a different day.
The small number
Agree a difference you will not fight about. NPR 20 of coins is not a disciplinary meeting. NPR 700 is. If you never write the number down, every gap feels like theft and none of them get fixed. The point of the handover is that tomorrow's float starts from a count, not from whatever was left in the tray.
Who can sell, and who can see the rest, is staff.