-50.29% is the change from 863 to 429
Calculation steps:
[( 429 - 863 ) ÷ 863] x 100 = -50.29%
Formula
Percentage change = [(429 - 863) / 863] x 100
Subtract the new number by the original number
429 - 863 = -434
-434 ÷ 863 = -0.5028968713789108
-0.5028968713789108 x 100 = -50.29%