Percent increase or decrease Classwork #2

Front

What is percent increase?

Back

Percent increase is the amount of increase expressed as a percentage of the original amount. It is calculated using the formula: ((New Value - Old Value) / Old Value) x 100.

Front

What is percent decrease?

Back

Percent decrease is the amount of decrease expressed as a percentage of the original amount. It is calculated using the formula: ((Old Value - New Value) / Old Value) x 100.

Front

How do you calculate the percent change?

Back

Percent change is calculated using the formula: ((New Value - Old Value) / Old Value) x 100.

Front

If a quantity increases from 20 to 30, what is the percent increase?

Back

50%.

Front

If a quantity decreases from 50 to 30, what is the percent decrease?

Back

40%.

Front

What is the formula for finding the whole when given a percent and a quantity?

Back

Whole = Quantity / Percent.

Front

What is 3.5 as a fraction?

Back

3 1/2.

Front

If 8 is increased to 10, what is the percent change?

Back

25%.

Front

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

Back

11%.

Front

What does 'Quantity = Percent x Whole' mean?

Back

This formula expresses the relationship between a part (Quantity), a whole (Whole), and the percentage (Percent) of that whole.