The difference between these is four, and you should try and find what percentage 4 is of 32. 1/4 of 32 is 8, and as 4 is half of eight, this will be 1/8. Then convert this into a percentage, which is 12.5%
( 32 32 − 28 ) ∗ 100 = 12.5
The general formula is;
( or i g ina l or i g ina l − n e w ) ∗ 100
You completed Level 2 of the video game in 28 minutes, which is 4 minutes less than the original time of 32 minutes. The percent decrease in your time is calculated to be 12.5%. Therefore, you improved your completion time by 12.5%.
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