-50.23% is the change from 854 to 425
Calculation steps:
[( 425 - 854 ) ÷ 854] x 100 = -50.23%
Formula
Percentage change = [(425 - 854) / 854] x 100
Subtract the new number by the original number
425 - 854 = -429
-429 ÷ 854 = -0.5023419203747073
-0.5023419203747073 x 100 = -50.23%