Find the %
% Increase/decrease
Tax/tip/markup
% Error
100

24 is what percent of 50?

48%

100

If the price of a tv last week was $1,022. This week, it is $899. What is the percent decrease of the tv?

12% decrease in price

100

Your bill at a restaurant comes to $24.50. You decide to tip 16%. What is the final bill?

$28.42

100

Joshua uses his thermometer and finds the boiling point of ethyl alcohol to be 75 C.  He looks in a reference book and finds that the actual boiling point of ethyl alcohol is 80 C.  What is his percent error?

6.25%

200

14 is what percent of 82?

17%

200

The average fine for entering a National Forest Wilderness without a permit increased from $65 to $78. What rate of increase is this?

20%


200

Your final bill is $51.28. This includes a 12% tip. What was the bill without tax?

Around $45.13
200

Gabrielle calculated the volume of the cube to be 125 cubic feet. The actual volume was 180 cubic feet. What was her percent error?

30.5%

300

If there are 32 girls and 42 boys in a college class, what is the percent of boys?

About 57%

300

A pair of snow boots at an equipment store in Big Bear that originally cost $60 is on sale for $36. What is the rate of decrease? 

40%

300

You get a haircut that cost $23. If you tip the barber 10%, what is the final bill?

$25.50

300

Ken thought that the distance between his home and work was 32 miles. The actual distance was 41.5 miles. What was his percent error?

About 23%

400

If there are 128 students and 28 staff, what percent of the total people are staff?

About 18%

400

A stereo system is marked down from $450 to $382.50. What is the discount rate?

15%

400

You deposit $572.34 in an account that pays 4.5% interest. How much interest do you earn after 6 years?

Around $155

400

Derick filled the picture with 8 fluid ounces of juice. What was the percent error if it was actually 10 fluid ounces?

20%


500

What percent of 48 is 17?

35%

500

. A managers’ salary at Green Dot increased from $48,000 to $51,360. What is the rate of increase?

7%

500

For every car you sell, you get a 6% commission. If your total sales for the month are $125,650. What is your commission?

$7,539


500

An object has a mass of 36.0 grams. On Anthony’s balance, it weighs 34.25 grams. What is the percent error of his balance?

5%