70.27% is the change from 185 to 315
Calculation steps:
[( 315 - 185 ) ÷ 185] x 100 = 70.27%
Formula
Percentage change = [(315 - 185) / 185] x 100
Subtract the new number by the original number
315 - 185 = 130
130 ÷ 185 = 0.7027027027027027
0.7027027027027027 x 100 = 70.27%