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## 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 following with the correct percentage increase or decrease to the nearest whole percent.

 1.   366 is % greater than 200 2.   189 is % greater than 150

### Complexity=50, Mode=decrease

Fill in the following with the correct percentage increase or decrease to the nearest whole percent.

 1.   289 is % smaller than 425 2.   198 is % smaller than 200

### Complexity=100

Fill in the following with the correct percentage increase or decrease to the nearest whole percent.

 1.   101 is % greater than 44 2.   86 is % greater than 69

### Complexity=25, Mode=increase

Fill in the following 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%
2189 is % greater than 150
Solution
% change = (new number - original number) / (original number) × 100
% change = (189 - 150) / 150 × 100
% change = 39 / 150 × 100
% change = 26%

### Complexity=50, Mode=decrease

Fill in the following with the correct percentage increase or decrease to the nearest whole percent.

1289 is % smaller than 425
Solution
% change = (new number - original number) / (original number) × 100
% change = (289 - 425) / 425 × 100
% change = -136 / 425 × 100
% change = -32%
2198 is % smaller than 200
Solution
% change = (new number - original number) / (original number) × 100
% change = (198 - 200) / 200 × 100
% change = -2 / 200 × 100
% change = -1%

### Complexity=100

Fill in the following with the correct percentage increase or decrease to the nearest whole percent.

1101 is % greater than 44
Solution
% change = (new number - original number) / (original number) × 100
% change = (101 - 44) / 44 × 100
% change = 57 / 44 × 100
% change = 130%   