What is the percent increase from 20 to 30?

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Study for the 8th Grade Mathematics Test. Prepare with multiple choice questions, each with hints and explanations. Get ready for your exam!

Multiple Choice

What is the percent increase from 20 to 30?

Explanation:
Percent increase is found by comparing the amount of increase to the original amount. The increase from 20 to 30 is 30 − 20 = 10. Divide that by the original amount: 10 ÷ 20 = 0.5, then multiply by 100 to get the percentage, which is 50%. So the value grew by half of its original amount. (An increase of 5 would be 25%, 8 would be 40%, and 12 would be 60%, which don’t match the actual change.)

Percent increase is found by comparing the amount of increase to the original amount. The increase from 20 to 30 is 30 − 20 = 10. Divide that by the original amount: 10 ÷ 20 = 0.5, then multiply by 100 to get the percentage, which is 50%. So the value grew by half of its original amount. (An increase of 5 would be 25%, 8 would be 40%, and 12 would be 60%, which don’t match the actual change.)

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