PERCENT OF CHANGE. WHAT IS THE PERCENT OF CHANGE? The amount stated as a percent that a number increases or decreases.

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Presentation transcript:

PERCENT OF CHANGE

WHAT IS THE PERCENT OF CHANGE? The amount stated as a percent that a number increases or decreases

WHAT IS THE PERCENT OF INCREASE? The amount the number goes up

The amount a number goes down. WHAT IS THE AMOUNT OF DECREASE?

WHAT IS THE FORMULA FOR THE PERCENT OF CHANGE? Percent of change = amount of change original amount

HOW DO I FIND PERCENT OF CHANGE? Example: 27 is decreased to Find the amt of change: 2.Formula: 3.Divide: 4.Write as a percent: 5.Percent of decrease is:

EXAMPLE : 2.15 is increased to 25 1.Amt of change: 2.Formula: 3.Divide: 4.Write as a %: 5.Percent of increase:

HOW DO I USE PERCENT OF CHANGE? The regular price of a portable CD player is $ This week the CD player is on sale for 25% off. 1.Find the amount of discount: 2.Find the sale price: