Percent of Change

Front

What is Percent of Change?

Back

Percent of Change is a way to express how much a quantity has increased or decreased in relation to its original value, calculated as (New Value - Original Value) / Original Value x 100%.

Front

How do you calculate the percent increase?

Back

Percent Increase = (New Value - Original Value) / Original Value x 100%.

Front

How do you calculate the percent decrease?

Back

Percent Decrease = (Original Value - New Value) / Original Value x 100%.

Front

If the original price of an item is $50 and the new price is $75, what is the percent increase?

Back

50% increase.

Front

If the original price of a shirt is $20 and it is now $15, what is the percent decrease?

Back

25% decrease.

Front

What is the formula for finding the new value after a percent increase?

Back

New Value = Original Value + (Original Value x Percent Increase).

Front

What is the formula for finding the new value after a percent decrease?

Back

New Value = Original Value - (Original Value x Percent Decrease).

Front

If a car's value decreased from $20,000 to $15,000, what is the percent decrease?

Back

25% decrease.

Front

If a student scored 70 on a test and then scored 85 on the next test, what is the percent increase in their score?

Back

21.43% increase.

Front

What does a 100% increase mean?

Back

A 100% increase means the new value is double the original value.