Percent Change

Front

What is percent change?

Back

Percent change is a measure of how much a quantity has increased or decreased relative to its original value, expressed as a percentage.

Front

How do you calculate percent change?

Back

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

Front

If the original value is 72 and the new value is 36, what is the percent change?

Back

Percent Change = ((36 - 72) / 72) x 100 = -50%. This indicates a decrease of 50%.

Front

If Mrs. Ciampa had 27 students last year and 30 this year, what is the percent change?

Back

Percent Change = ((30 - 27) / 27) x 100 = 11.11%, approximately 11%.

Front

What does a negative percent change indicate?

Back

A negative percent change indicates a decrease in value.

Front

What does a positive percent change indicate?

Back

A positive percent change indicates an increase in value.

Front

If sales increased from 10,000 to 18,500, what is the percent increase?

Back

Percent Increase = ((18,500 - 10,000) / 10,000) x 100 = 85%.

Front

What is the percent change if the original price of a purse was $45 and the new price is $54?

Back

Percent Change = ((54 - 45) / 45) x 100 = 20% increase.

Front

If a quantity decreases from 75 to 25, what is the percent change?

Back

Percent Change = ((25 - 75) / 75) x 100 = -66.67%, indicating a decrease.

Front

What is the formula for calculating percent decrease?

Back

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