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The cost of a school yearbook was $40 last year. This year the yearbook costs $50. What is the percentage increase of the yearbook from last year to this year?

User Madoc
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What is a percentage?

A percentage is a ratio, or a number expressed in the form of a fraction of 100. Percentages are often used to express a part of a total.

First, we need to figure out the amount the price increased.

50 - 40 = 10

The price of the yearbook this year increased $10.

Now, taking 10, we need to figure out what percent of 40 is 10.

10 ÷ 40 = 0.25

10 is %25 of 40.

Therefore, the price increase from last year to this year is %25.

User Calahad
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