Question

Last year 762 students went back to the school and spring dances. This year only 645 students attended the two dances. What is the precent of decrease?

Answer 1

The percent of decrease is 15%

Further explanation:

We have to calculate the percentage decrease

The formula for percent decrease is:

$Percent\ decrease= \frac{decrease}{original\ quantity}*100\\While\ decrease\ is\ calculated\ as:\\Decrease=Original\ quantity-decreased\ quantity$

Given

Original Quantity=762 students

Decreased Quantity=645 students

Decrease=762-645

=117

Putting values in the formula

$Percent\ Decrease=\frac{117}{762}*100\\=0.15*100\\=15\%$

The percent of decrease is 15%

Keywords: Percent Decrease, Percentage

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