A video game store sold 135 copies of a new release game in June. In July, they sold 108 copies of the same game. What is the percent decrease in the sales of this game from June to July?

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the percent decrease is 20%

percent decrease: decrease/old price * 100%

Subtract:

135 - 108 = 27

Fill into formula,

= 27/135 * 100%

= 1/5 * 100%

= 0.20 * 100%

= 20%

therefore, the percent decrease is 20%!