Percent Formula

Shirley spelled 12 of her 16 spelling words correctly on the test. What percent grade did Shirley get on the test?

• 70%

• 50%

• 75%

• 60%

34% of what number is 51?

• 69

• 71

• 150

• 196

8 is what percent of 20?

• 40%

• 20%

• 250%

• 2.5%

How do you calculate the percent composition of an element in a compound?

• Divide the total mass of the compound by the mass of the element and multiply by 100

• Divide the mass of the element by the total mass of the compound and multiply by 100

• Multiply the mass of the element by the total mass of the compound

• Add the mass of the element to the total mass of the compound and divide by 100

Tickets to Disney World are $100.The price is going to increase on January 1. What is the percent of change if the cost increases to a $120?

• 25%

• 18%

• 20%

• 50%

82% of what is 95?

• 115.9

• 77.9

• 100

• 112

Jason spends $450 for transportation. This is 25% of his monthly salary . How much money did he earn each month?

• $1800

• $800

• $900

• $1000

The number of people signed up for a bus trip increased from 32 to 45. What is the percent increase? Round to the nearest percent.

• 52%

• 41%

• 42%

• 45%

The regular price of a scooter is $65.50. It is on sale for $52.40. What is the percent decrease from the regular price to the sale price of the scooter? 

• 35%

• 25%

• 30%

• 20%

Find the percent increase. Round to the nearest percent.
From $5 to $8 

• 40%

• 60%

• 55%

• 65%