-98.61% is the change from 577 to 8
Calculation steps:
[( 8 - 577 ) ÷ 577] x 100 = -98.61%
Formula
Percentage change = [(8 - 577) / 577] x 100
Subtract the new number by the original number
8 - 577 = -569
-569 ÷ 577 = -0.9861351819757366
-0.9861351819757366 x 100 = -98.61%