Ten Percent of What?

Ten percent of $10 and ten percent of $100 are different amounts.

A magnifying glass enlarging ten percent on a number card

“I earned ten percent!” says a character in a made-up example.

Ten percent of what?

  • Ten percent of $10 is $1.
  • Ten percent of $100 is $10.
  • Ten percent of $110 is $11.

A percentage tells you how many parts out of a hundred. Ten percent means ten out of a hundred.

The same percentage gives different dollar amounts when the starting amount changes.

That's why you need both numbers: the percentage and the amount it applies to. In a growth example, earlier earnings may be part of the next starting amount. Real earnings aren't promised.

Money words

Percentage

A number of parts out of a hundred. Ten percent means ten out of a hundred.

THE BIG IDEA

The same percentage can mean different dollar amounts. Always check the amount it applies to.

Quick check

Question 1 of 1

What is 10% of $110?