Percent Increase and Decrease

Front

What is percent increase?

Back

Percent increase is a measure of how much a quantity has grown relative to its original amount, expressed as a percentage.

Front

What is percent decrease?

Back

Percent decrease is a measure of how much a quantity has shrunk relative to its original amount, expressed as a percentage.

Front

How do you calculate percent change?

Back

Percent change = (New Value - Old Value) / Old Value × 100%.

Front

What is the percent change from 18 to 45?

Back

150% increase.

Front

What is the sale price of a $600 TV with a 20% discount?

Back

$480.

Front

How do you find the sale price after a discount?

Back

Sale Price = Original Price - (Discount Rate × Original Price).

Front

What is the percent change from 24 teachers to 30 teachers?

Back

25% increase.

Front

What is the percent change from 126 ounces to 48 ounces?

Back

62% decrease.

Front

How do you calculate a tip amount?

Back

Tip Amount = Total Bill × Tip Percentage.

Front

What is the tip amount on a $20 lunch if you leave a 20% tip?

Back

$4.