-49.18% is the change from 854 to 434
Calculation steps:
[( 434 - 854 ) ÷ 854] x 100 = -49.18%
Formula
Percentage change = [(434 - 854) / 854] x 100
Subtract the new number by the original number
434 - 854 = -420
-420 ÷ 854 = -0.4918032786885246
-0.4918032786885246 x 100 = -49.18%