-57.31% is the change from 834 to 356
Calculation steps:
[( 356 - 834 ) ÷ 834] x 100 = -57.31%
Formula
Percentage change = [(356 - 834) / 834] x 100
Subtract the new number by the original number
356 - 834 = -478
-478 ÷ 834 = -0.5731414868105515
-0.5731414868105515 x 100 = -57.31%