-49.94% is the change from 849 to 425
Calculation steps:
[( 425 - 849 ) ÷ 849] x 100 = -49.94%
Formula
Percentage change = [(425 - 849) / 849] x 100
Subtract the new number by the original number
425 - 849 = -424
-424 ÷ 849 = -0.4994110718492344
-0.4994110718492344 x 100 = -49.94%