13.17% is the change from 281 to 318
Calculation steps:
[( 318 - 281 ) ÷ 281] x 100 = 13.17%
Formula
Percentage change = [(318 - 281) / 281] x 100
Subtract the new number by the original number
318 - 281 = 37
37 ÷ 281 = 0.13167259786476868
0.13167259786476868 x 100 = 13.17%