-50.59% is the change from 854 to 422
Calculation steps:
[( 422 - 854 ) ÷ 854] x 100 = -50.59%
Formula
Percentage change = [(422 - 854) / 854] x 100
Subtract the new number by the original number
422 - 854 = -432
-432 ÷ 854 = -0.5058548009367682
-0.5058548009367682 x 100 = -50.59%