39.38% is the change from 226 to 315
Calculation steps:
[( 315 - 226 ) ÷ 226] x 100 = 39.38%
Formula
Percentage change = [(315 - 226) / 226] x 100
Subtract the new number by the original number
315 - 226 = 89
89 ÷ 226 = 0.3938053097345133
0.3938053097345133 x 100 = 39.38%