117.58% is the change from 256 to 557
Calculation steps:
[( 557 - 256 ) ÷ 256] x 100 = 117.58%
Formula
Percentage change = [(557 - 256) / 256] x 100
Subtract the new number by the original number
557 - 256 = 301
301 ÷ 256 = 1.17578125
1.17578125 x 100 = 117.58%