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7-80.

Joe wanted to know more about how the cost of fertilizer for his lawn-care business was changing. The cost of a bag of fertilizer just increased from $8 to $15. What is the percent increase of the price? Represent the change as a fraction, as a percent, and as a decimal. Homework Help ✎

Refer to the example at right from the Math Notes box in this lesson for help with percent increases.

Increase = $7
$7 = (x)($8)