12.58% is the change from 318 to 358
Calculation steps:
[( 358 - 318 ) ÷ 318] x 100 = 12.58%
Formula
Percentage change = [(358 - 318) / 318] x 100
Subtract the new number by the original number
358 - 318 = 40
40 ÷ 318 = 0.12578616352201258
0.12578616352201258 x 100 = 12.58%