-88.19% is the change from 864 to 102
Calculation steps:
[( 102 - 864 ) ÷ 864] x 100 = -88.19%
Formula
Percentage change = [(102 - 864) / 864] x 100
Subtract the new number by the original number
102 - 864 = -762
-762 ÷ 864 = -0.8819444444444444
-0.8819444444444444 x 100 = -88.19%