What is 10 percent of 217?

Answer 1

10 percent of 217 is 21.7.

100% is the number, with each 0 smaller, you move the decimal point to the left one place. You move it to the right with each extra 0 (1,000%, 10,000%, etc)

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Answer 2

10% of any number is easy to find, just move the decimal point one place to the left.

Therefore 10% of 217 is 21.7