-48.68% is the change from 834 to 428
Calculation steps:
[( 428 - 834 ) ÷ 834] x 100 = -48.68%
Formula
Percentage change = [(428 - 834) / 834] x 100
Subtract the new number by the original number
428 - 834 = -406
-406 ÷ 834 = -0.486810551558753
-0.486810551558753 x 100 = -48.68%