Percent Proportion Change

You estimate that 200 people attend a school concert. The actual attendance was 240.   What is the percent error?

• 20%

• 18%

• 16%

• 17%

What is 40% of 230?

• 92

• 9200

• 9.20

• 575

In the Central City Grand Prix, out of 30 cars that started the race, 12 of them finished. What percent of the cars finished the race?

• 20%

• 40%

• 60%

• 80%

Determine if you are finding the part, percent, or whole.  
What is 20% of 60?

• Part

• Percent

• Whole

Determine if you are finding the part, percent, or whole.  
12 is 50% of what number?

• Part

• Percent

• Whole

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%

Find each percent decrease. Round to the nearest percent.
From $80 to $64 

• 35%

• 10%

• 20%

• 25%

My dog's weight is now 125% of what she weighed one year ago. If her weight then was 30kg, what is her increased weight now?

• 31.25

• 30.125

• 37.5

• 37.125