### Home > CCAA > Chapter 7 Unit 6 > Lesson CC2: 7.1.7 > Problem7-80

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.

$\text{Increase}=\7$
$\7=(x)(\8)$

$\frac{7}{8}=0.875, \;87.5\%$