Question

Steve measured a pile that was 6 feet tall. The next day the snow pile was only 4.5 feet tall. What is the percent of decrease

Answer 1

$percent ~change = \dfrac{new~number - old~number}{old~number} \times 100$

Here, the new number is 4.5. The old number is 6.

$percent ~change = \dfrac{4.5 - 6}{6} \times 100$

$percent ~change = \dfrac{-1.5}{6} \times 100$

$percent ~change = -0.25 \times 100$

$percent ~change = -25$

Since the percent change is negative, it is a percent decrease.

Answer: The percent decrease is 25%.