45.08% is the change from 315 to 457
Calculation steps:
[( 457 - 315 ) ÷ 315] x 100 = 45.08%
Formula
Percentage change = [(457 - 315) / 315] x 100
Subtract the new number by the original number
457 - 315 = 142
142 ÷ 315 = 0.4507936507936508
0.4507936507936508 x 100 = 45.08%