6862.5% is the change from 8 to 557
Calculation steps:
[( 557 - 8 ) ÷ 8] x 100 = 6862.5%
Formula
Percentage change = [(557 - 8) / 8] x 100
Subtract the new number by the original number
557 - 8 = 549
549 ÷ 8 = 68.625
68.625 x 100 = 6862.5%
Example