-98.62% is the change from 578 to 8
Calculation steps:
[( 8 - 578 ) ÷ 578] x 100 = -98.62%
Formula
Percentage change = [(8 - 578) / 578] x 100
Subtract the new number by the original number
8 - 578 = -570
-570 ÷ 578 = -0.986159169550173
-0.986159169550173 x 100 = -98.62%