-87.87% is the change from 709 to 86
Calculation steps:
[( 86 - 709 ) ÷ 709] x 100 = -87.87%
Formula
Percentage change = [(86 - 709) / 709] x 100
Subtract the new number by the original number
86 - 709 = -623
-623 ÷ 709 = -0.8787023977433004
-0.8787023977433004 x 100 = -87.87%