-87.8% is the change from 582 to 71
Calculation steps:
[( 71 - 582 ) ÷ 582] x 100 = -87.8%
Formula
Percentage change = [(71 - 582) / 582] x 100
Subtract the new number by the original number
71 - 582 = -511
-511 ÷ 582 = -0.8780068728522337
-0.8780068728522337 x 100 = -87.8%