54.58% is the change from 557 to 861
Calculation steps:
[( 861 - 557 ) ÷ 557] x 100 = 54.58%
Formula
Percentage change = [(861 - 557) / 557] x 100
Subtract the new number by the original number
861 - 557 = 304
304 ÷ 557 = 0.5457809694793537
0.5457809694793537 x 100 = 54.58%