-42.69% is the change from 834 to 478
Calculation steps:
[( 478 - 834 ) ÷ 834] x 100 = -42.69%
Formula
Percentage change = [(478 - 834) / 834] x 100
Subtract the new number by the original number
478 - 834 = -356
-356 ÷ 834 = -0.42685851318944845
-0.42685851318944845 x 100 = -42.69%