-62.83% is the change from 834 to 310
Calculation steps:
[( 310 - 834 ) ÷ 834] x 100 = -62.83%
Formula
Percentage change = [(310 - 834) / 834] x 100
Subtract the new number by the original number
310 - 834 = -524
-524 ÷ 834 = -0.6282973621103117
-0.6282973621103117 x 100 = -62.83%