55.56% is the change from 315 to 490
Calculation steps:
[( 490 - 315 ) ÷ 315] x 100 = 55.56%
Formula
Percentage change = [(490 - 315) / 315] x 100
Subtract the new number by the original number
490 - 315 = 175
175 ÷ 315 = 0.5555555555555556
0.5555555555555556 x 100 = 55.56%