Percent Change MOD 6 Mrs. Berry Simms 1 Lab. How to Calculate Percent Change.

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Presentation transcript:

Percent Change MOD 6 Mrs. Berry Simms 1 Lab

How to Calculate Percent Change

Example 1: Original Price = $4 New Price = $3 Find the Percent Change in the prices

Step 1: Plug in your values Original Price = $4 New Price = $3

Step 2: Simplify the fraction

Step 3: Convert the fractions to a decimal

Step 4: Convert the decimal to a percent by moving the decimal point 2 places to the right

Step 5: Decide if the price went up increase or if the price went down decrease Original Price = $4 New Price = $3 DECREASE

Step 6: Write the percent change with the description

Example 2: Original Price = $4 New Price = $5 Find the Percent Change in the prices

Step 1: Plug in your values Original Price = $4 New Price = $5

Step 2: Simplify the fraction

Step 3: Convert the fractions to a decimal

Step 4: Convert the decimal to a percent by moving the decimal point 2 places to the right

Step 5: Decide if the price went up increase or if the price went down decrease Original Price = $4 New Price = $5 INCREASE

Step 6: Write the percent change with the description

On your own paper You try #1: Original Price: $5 New Price: $3 Show all of your work!

On your own paper You try #2: Original Price: $5 New Price: $9 Show all of your work!

On your own paper You try #3: Original Price: $10 New Price: $7.50 Show all of your work!

On your own paper You try #4: Original Price: $10 New Price: $12.50 Show all of your work!

Turn in your work to Mrs. Berry Is your name on your paper? Did you show all of your work? Did you move the decimal point 2 places to make your percents?