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, usually expressed as a percentage.

Front

How do you calculate Percent of Change?

Back

Percent of Change = ((New Amount - Original Amount) / Original Amount) x 100.

Front

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

Back

90% decrease.

Front

If Mrs. Mroc's class increases from 35 to 42 students, what is the percent of change?

Back

20% increase.

Front

What is the percent change if the original cost was $50 and the new cost is $60?

Back

20% increase.

Front

If Eddie started with 20 tickets and ended with 30 tickets, what is the percent of change?

Back

50% increase.

Front

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

Back

17% decrease.

Front

What does a positive percent change indicate?

Back

A positive percent change indicates an increase in the quantity.

Front

What does a negative percent change indicate?

Back

A negative percent change indicates a decrease in the quantity.

Front

If a price decreases from $80 to $60, what is the percent of change?

Back

25% decrease.