A price increases from 100 to 130. What is the percent increase?

A price increases from 100 to 130. What is the percent increase?

• A. 25
• B. 28
• C. 29
• D. 30

Answer: (D)

Percent increase is found by dividing the amount of the increase by the original amount and multiplying by 100. Here, the price goes from 100 to 130, so the increase is 30. That 30 relative to the original 100 is 30/100 = 0.30, which is 30%. So the percent increase is 30%. The other numbers would correspond to smaller increases (25, 28, or 29 dollars) expressed as a percent of 100, which would be 25%, 28%, or 29%, not the actual 30%.

Percent increase is found by dividing the amount of the increase by the original amount and multiplying by 100. Here, the price goes from 100 to 130, so the increase is 30. That 30 relative to the original 100 is 30/100 = 0.30, which is 30%. So the percent increase is 30%. The other numbers would correspond to smaller increases (25, 28, or 29 dollars) expressed as a percent of 100, which would be 25%, 28%, or 29%, not the actual 30%.