596.25% is the change from 80 to 557
Calculation steps:
[( 557 - 80 ) ÷ 80] x 100 = 596.25%
Formula
Percentage change = [(557 - 80) / 80] x 100
Subtract the new number by the original number
557 - 80 = 477
477 ÷ 80 = 5.9625
5.9625 x 100 = 596.25%
Example