-87.72% is the change from 578 to 71
Calculation steps:
[( 71 - 578 ) ÷ 578] x 100 = -87.72%
Formula
Percentage change = [(71 - 578) / 578] x 100
Subtract the new number by the original number
71 - 578 = -507
-507 ÷ 578 = -0.8771626297577855
-0.8771626297577855 x 100 = -87.72%