-50.41% is the change from 863 to 428
Calculation steps:
[( 428 - 863 ) ÷ 863] x 100 = -50.41%
Formula
Percentage change = [(428 - 863) / 863] x 100
Subtract the new number by the original number
428 - 863 = -435
-435 ÷ 863 = -0.5040556199304751
-0.5040556199304751 x 100 = -50.41%