-50.06% is the change from 863 to 431
Calculation steps:
[( 431 - 863 ) ÷ 863] x 100 = -50.06%
Formula
Percentage change = [(431 - 863) / 863] x 100
Subtract the new number by the original number
431 - 863 = -432
-432 ÷ 863 = -0.5005793742757821
-0.5005793742757821 x 100 = -50.06%