Lesson 6-4, 6-5 and 6-6

Front

What is percent of change?

Back

Percent of change is a measure of how much a quantity has increased or decreased relative to its original amount, expressed as a percentage.

Front

How do you calculate percent of change?

Back

Percent of change = ((New Value - Old Value) / Old Value) x 100.

Front

Find the percent of change from 128 pounds to 155 pounds.

Back

21.09%.

Front

What does it mean to save a percentage on a purchase?

Back

Saving a percentage means reducing the total cost by that percentage, resulting in a lower final price.

Front

If a vacation costs $5875 and you save 20%, how much do you save?

Back

$1175.00.

Front

What is a percent increase?

Back

A percent increase is the amount of increase expressed as a percentage of the original amount.

Front

How do you calculate percent increase?

Back

Percent increase = ((New Value - Old Value) / Old Value) x 100.

Front

Find the percent increase from $5 to $8.

Back

60%.

Front

What is a percent decrease?

Back

A percent decrease is the amount of decrease expressed as a percentage of the original amount.

Front

How do you calculate percent decrease?

Back

Percent decrease = ((Old Value - New Value) / Old Value) x 100.