864.91% is the change from 57 to 550
Calculation steps:
[( 550 - 57 ) ÷ 57] x 100 = 864.91%
Formula
Percentage change = [(550 - 57) / 57] x 100
Subtract the new number by the original number
550 - 57 = 493
493 ÷ 57 = 8.649122807017545
8.649122807017545 x 100 = 864.91%