-87.88% is the change from 586 to 71
Calculation steps:
[( 71 - 586 ) ÷ 586] x 100 = -87.88%
Formula
Percentage change = [(71 - 586) / 586] x 100
Subtract the new number by the original number
71 - 586 = -515
-515 ÷ 586 = -0.878839590443686
-0.878839590443686 x 100 = -87.88%