I've always found it satisfying when my total bill, including tip, comes out to a whole-dollar amount.
So, I put together the table below to show which base amounts (without tip) lead to a whole-dollar total amount (with tip).
Pink boxes indicate that the total is a whole-dollar amount. Hover over any box to see the total, including tip.
In case you're interested, the frequency chart above shows how often this phenomenon can be achieved for each percentage. The highest frequency is 25%, followed by 20%.
Shaun Gallagher is the author of three popular science books and one silly statistics book:
He's also a software engineering manager and lives in northern Delaware with his wife and children.
Visit his portfolio site for more about his books and his programming projects.
The views expressed on this blog are his own and do not necessarily represent the views of his publishers or employer.
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