Download presentation

Published byDustin McGee Modified over 8 years ago

1
**Percent Change: Percent Increase / Percent Decrease**

Objective: Learn to solve problems involving percent increase and percent decrease.

2
**Gaby went to Kalas and wanted to buy a really cool red dress**

Gaby went to Kalas and wanted to buy a really cool red dress. The dress was on sale 25% off. If the original price of the dress was $165 dollars, how much will the price be reduced? When a price or number changes, you can use the following formula to describe the increase or decrease. Percent change = amount of change original amount

3
**If we use the formula for example 1:**

Percent change = amount of change original amount So you have to substitute the values…. 25 = X $165 100 X = (when dividing by 100, move the decimal point places to the left.) X =

4
**Example 2: Find the percent increase or decrease,**

if 15 is increased to 20. Percent change = amount of change original amount P = 5 15 P = P = % To find the amount of change you must subtract the original amount and the new amount.

5
Your Examples: 1. Find the percent increase or decrease (the percent change) if 96 is decreased to 72. Percent change = amount of change original amount 2. Find the amount of increase or decrease or the ( amount of change) if 75 is increased by 60%.

6
**Homework: Find each Percent change or percent increase or decrease.**

Find the amount of change or amount increase or decrease. 125 is decreased to 2. 360 is increased to 361. 84 is decreased to 28. 615 is decreased to 450. 460 is increased to 500. 58 is increased by 72%. 28 is increased by 150%. 506 is decreased by 57%. 4 is increased by 12%. 48 is increased by 35%.

Similar presentations

© 2024 SlidePlayer.com Inc.

All rights reserved.

To make this website work, we log user data and share it with processors. To use this website, you must agree to our Privacy Policy, including cookie policy.

Ads by Google