Percent of Change

Front

What is percent of change?

Back

Percent of change is a way to express the difference between an old value and a new value as a percentage of the old value.

Front

How do you calculate percent increase?

Back

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

Front

How do you calculate percent decrease?

Back

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

Front

If a price increases from $50 to $60, what is the percent increase?

Back

20% increase.

Front

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

Back

17.74% decrease.

Front

What is the percent change if the number of speeding tickets decreases from 72 to 36?

Back

50% decrease.

Front

If the enrollment at a school increases from 465 to 525 students, what is the percent increase?

Back

13% increase.

Front

How do you find the new value after a percent increase?

Back

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

Front

How do you find the new value after a percent decrease?

Back

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

Front

If the number of people on a bus trip increases from 32 to 45, what is the percent increase?

Back

41% increase.