-84.95% is the change from 578 to 87
Calculation steps:
[( 87 - 578 ) ÷ 578] x 100 = -84.95%
Formula
Percentage change = [(87 - 578) / 578] x 100
Subtract the new number by the original number
87 - 578 = -491
-491 ÷ 578 = -0.8494809688581315
-0.8494809688581315 x 100 = -84.95%