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 10 and the new amount is 12, what is the percent change?

Back

20% increase.

Front

Eddie started with 20 tickets and ended with 30 tickets. What is the percent of change?

Back

50% increase.

Front

If the original amount is 20 dogs and the new amount is 5 dogs, what is the percent change?

Back

75% decrease.

Front

Carlos scored 50 on his first test and 75 on his second test. What is the percent of change in his score?

Back

50% increase.

Front

What is the percent increase if snowfall was 4 inches in December and 20 inches in January?

Back

400% increase.

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 increases from $50 to $75, what is the percent change?

Back

50% increase.