Total and people
Use the amount on the receipt.
Enter the total, headcount and service rate to get the amount per person. Round to 1 or 5 and the leftover is shown explicitly.
Open Bill Split →Use the amount on the receipt.
Enter the rate, or zero if none.
Any over- or under-collection is listed separately.
Use Manlin to reflect, plan and take your next step.

It is usually a few cents to a few units; keep it as a kitty or drop it.
This tool splits evenly; split the bill into parts first for custom shares.