-85.98% is the change from 863 to 121
Calculation steps:
[( 121 - 863 ) ÷ 863] x 100 = -85.98%
Formula
Percentage change = [(121 - 863) / 863] x 100
Subtract the new number by the original number
121 - 863 = -742
-742 ÷ 863 = -0.8597914252607184
-0.8597914252607184 x 100 = -85.98%