75.16% is the change from 318 to 557
Calculation steps:
[( 557 - 318 ) ÷ 318] x 100 = 75.16%
Formula
Percentage change = [(557 - 318) / 318] x 100
Subtract the new number by the original number
557 - 318 = 239
239 ÷ 318 = 0.7515723270440252
0.7515723270440252 x 100 = 75.16%