## Percentage Change - Sample Math Practice Problems

The math problems below can be generated by MathScore.com, a math practice program for schools and individual families. References to complexity and mode refer to the overall difficulty of the problems as they appear in the main program. In the main program, all problems are automatically graded and the difficulty adapts dynamically based on performance. Answers to these sample questions appear at the bottom of the page. This page does not grade your responses.

See some of our other supported math practice problems.

### Complexity=25, Mode=increase

Fill in the follwoing with the correct percentage increase or decrease to the nearest whole percent.
 1.   366 is % greater than 200 2.   308 is % greater than 175

### Complexity=50, Mode=decrease

Fill in the follwoing with the correct percentage increase or decrease to the nearest whole percent.
 1.   468 is % smaller than 600 2.   208 is % smaller than 320

### Complexity=100

Fill in the follwoing with the correct percentage increase or decrease to the nearest whole percent.
 1.   109 is % greater than 62 2.   134 is % greater than 55

### Complexity=25, Mode=increase

Fill in the follwoing with the correct percentage increase or decrease to the nearest whole percent.
1366 is % greater than 200
Solution
% change = (new number - original number) / (original number) × 100
% change = (366 - 200) / 200 × 100
% change = 166 / 200 × 100
% change = 83%
2308 is % greater than 175
Solution
% change = (new number - original number) / (original number) × 100
% change = (308 - 175) / 175 × 100
% change = 133 / 175 × 100
% change = 76%

### Complexity=50, Mode=decrease

Fill in the follwoing with the correct percentage increase or decrease to the nearest whole percent.
1468 is % smaller than 600
Solution
% change = (new number - original number) / (original number) × 100
% change = (468 - 600) / 600 × 100
% change = -132 / 600 × 100
% change = -22%
2208 is % smaller than 320
Solution
% change = (new number - original number) / (original number) × 100
% change = (208 - 320) / 320 × 100
% change = -112 / 320 × 100
% change = -35%

### Complexity=100

Fill in the follwoing with the correct percentage increase or decrease to the nearest whole percent.
1109 is % greater than 62
Solution
% change = (new number - original number) / (original number) × 100
% change = (109 - 62) / 62 × 100
% change = 47 / 62 × 100
% change = 76%