36.96% is the change from 230 to 315
Calculation steps:
[( 315 - 230 ) ÷ 230] x 100 = 36.96%
Formula
Percentage change = [(315 - 230) / 230] x 100
Subtract the new number by the original number
315 - 230 = 85
85 ÷ 230 = 0.3695652173913043
0.3695652173913043 x 100 = 36.96%