-48.15% is the change from 839 to 435
Calculation steps:
[( 435 - 839 ) ÷ 839] x 100 = -48.15%
Formula
Percentage change = [(435 - 839) / 839] x 100
Subtract the new number by the original number
435 - 839 = -404
-404 ÷ 839 = -0.48152562574493446
-0.48152562574493446 x 100 = -48.15%