### Percent of Increase or Decrease example word problems

**Finding Percent of Increase**

Last year there where 150 kids in my son school. I

recently heard that the school size have grown by

10% this year. What is the present size of the school.

Find the actual amount of the increase.

multiply 10% by 150

.10 x 150 = 15 increase

Add the old School size plus the increase 150 + 15 = 165

The school School now have 165 kids.

**Finding Percent of Decrease**

Last month you made 300 dollars selling books.

This month you only made 185 dollars.

What is the percent of decrease?

First find the total lost.

300 - 185 = 115

115 is the decrease from the original amount of 300.

Divide the amount of decrease by the original amount

You can use a calculator

185 x 300 = 0.61666666

Round the number

0.61666666 = 0.62

Convert from decimal to percent by moving the decimal point

two places to the left and adding the percent sign.

0.62 = 62%