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

Front

How do you calculate Percent of Change?

Back

To calculate Percent of Change, use the formula: Percent of Change = ((New Value - Original Value) / Original Value) x 100%.

Front

If a class size increases from 35 to 42 students, what is the percent of change?

Back

20% increase.

Front

If the original cost of an item is $5 and the new cost is $1, what is the percent of change?

Back

80% decrease.

Front

What does an increase in percent of change indicate?

Back

An increase in percent of change indicates that the new value is greater than the original value.

Front

What does a decrease in percent of change indicate?

Back

A decrease in percent of change indicates that the new value is less than the original value.

Front

If a measurement changes from 12 inches to 36 inches, is it an increase or decrease?

Back

Increase.

Front

Mary lost 30 pounds from her original weight of 180 pounds. What is the percent of change?

Back

17% decrease.

Front

If the original amount is 72 and the new amount is 7, what is the percent change?

Back

90% decrease.

Front

What is the formula for calculating a decrease in percent of change?

Back

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