-88.19% is the change from 728 to 86
Calculation steps:
[( 86 - 728 ) ÷ 728] x 100 = -88.19%
Formula
Percentage change = [(86 - 728) / 728] x 100
Subtract the new number by the original number
86 - 728 = -642
-642 ÷ 728 = -0.8818681318681318
-0.8818681318681318 x 100 = -88.19%