-84.47% is the change from 863 to 134
Calculation steps:
[( 134 - 863 ) ÷ 863] x 100 = -84.47%
Formula
Percentage change = [(134 - 863) / 863] x 100
Subtract the new number by the original number
134 - 863 = -729
-729 ÷ 863 = -0.8447276940903824
-0.8447276940903824 x 100 = -84.47%