-49.6% is the change from 873 to 440
Calculation steps:
[( 440 - 873 ) ÷ 873] x 100 = -49.6%
Formula
Percentage change = [(440 - 873) / 873] x 100
Subtract the new number by the original number
440 - 873 = -433
-433 ÷ 873 = -0.4959908361970218
-0.4959908361970218 x 100 = -49.6%