PennyWise: How Much of a Part-Payment Is Tax?
The rounding bug that turns up when a taxed bill is paid in installments, and the one idea that kills it, a running tax total you are only ever allowed to floor. Splitting a bill between diners is the same problem.
By Wolfgang Teuber
There is a clown in the sewer with this name, and there is an old proverb about being wise with pennies and foolish with pounds. This post is about neither. It is about a genuinely annoying little problem that turns up the moment you let someone pay a taxed bill...
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