-50.64% is the change from 863 to 426
Calculation steps:
[( 426 - 863 ) ÷ 863] x 100 = -50.64%
Formula
Percentage change = [(426 - 863) / 863] x 100
Subtract the new number by the original number
426 - 863 = -437
-437 ÷ 863 = -0.5063731170336037
-0.5063731170336037 x 100 = -50.64%