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 the percent decrease?

Back

Percent decrease is calculated using the formula: ((original value - new value) / original value) x 100%.

Front

How do you calculate the percent increase?

Back

Percent increase is calculated using the formula: ((new value - original value) / original value) x 100%.

Front

If a dog's weight decreases from 62 pounds to 51 pounds, what is the percent change?

Back

17.74% decrease.

Front

If Ann's hourly wage increases from $10.00 to $12.00, what is the percent change?

Back

20% increase.

Front

If the number of speeding tickets decreases from 72 to 36, what is the percent change?

Back

50% decrease.

Front

If snowfall increases from 4 inches to 20 inches, what is the percent change?

Back

400% increase.

Front

If Clark Middle School's enrollment increases from 465 to 525 students, what is the percent change?

Back

13% increase.

Front

What does a percent change of 0% indicate?

Back

A percent change of 0% indicates that there has been no change in the value.

Front

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

Back

New value = original value + (original value x percent increase).