-90.96% is the change from 863 to 78
Calculation steps:
[( 78 - 863 ) ÷ 863] x 100 = -90.96%
Formula
Percentage change = [(78 - 863) / 863] x 100
Subtract the new number by the original number
78 - 863 = -785
-785 ÷ 863 = -0.9096176129779838
-0.9096176129779838 x 100 = -90.96%