PERCENT OF CHANGE (INCREASE OR DECREASE)

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 amount, calculated as (New Value - Original Value) / Original Value x 100%.

Front

How do you calculate Percent Decrease?

Back

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

Front

How do you calculate Percent Increase?

Back

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

Front

If a price goes from $50 to $30, what is the percent decrease?

Back

40% decrease.

Front

If a salary increases from $10 to $12, what is the percent increase?

Back

20% increase.

Front

What does a 100% increase mean?

Back

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

Front

What does a 50% decrease mean?

Back

A 50% decrease means the new value is half of the original value.

Front

If the original price of a shirt is $40 and it is now $30, what is the percent of change?

Back

25% decrease.

Front

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

Back

21.43% increase.

Front

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

Back

New Value = Original Value x (1 + Percent Increase).