49.21% is the change from 315 to 470
Calculation steps:
[( 470 - 315 ) ÷ 315] x 100 = 49.21%
Formula
Percentage change = [(470 - 315) / 315] x 100
Subtract the new number by the original number
470 - 315 = 155
155 ÷ 315 = 0.49206349206349204
0.49206349206349204 x 100 = 49.21%