-85.81% is the change from 578 to 82
Calculation steps:
[( 82 - 578 ) ÷ 578] x 100 = -85.81%
Formula
Percentage change = [(82 - 578) / 578] x 100
Subtract the new number by the original number
82 - 578 = -496
-496 ÷ 578 = -0.8581314878892734
-0.8581314878892734 x 100 = -85.81%