54.92% is the change from 315 to 488
Calculation steps:
[( 488 - 315 ) ÷ 315] x 100 = 54.92%
Formula
Percentage change = [(488 - 315) / 315] x 100
Subtract the new number by the original number
488 - 315 = 173
173 ÷ 315 = 0.5492063492063493
0.5492063492063493 x 100 = 54.92%