54.57% is the change from 317 to 490
Calculation steps:
[( 490 - 317 ) ÷ 317] x 100 = 54.57%
Formula
Percentage change = [(490 - 317) / 317] x 100
Subtract the new number by the original number
490 - 317 = 173
173 ÷ 317 = 0.5457413249211357
0.5457413249211357 x 100 = 54.57%