6637.5% is the change from 8 to 539
Calculation steps:
[( 539 - 8 ) ÷ 8] x 100 = 6637.5%
Formula
Percentage change = [(539 - 8) / 8] x 100
Subtract the new number by the original number
539 - 8 = 531
531 ÷ 8 = 66.375
66.375 x 100 = 6637.5%
Example