-49.76% is the change from 844 to 424
Calculation steps:
[( 424 - 844 ) ÷ 844] x 100 = -49.76%
Formula
Percentage change = [(424 - 844) / 844] x 100
Subtract the new number by the original number
424 - 844 = -420
-420 ÷ 844 = -0.4976303317535545
-0.4976303317535545 x 100 = -49.76%