-63.07% is the change from 834 to 308
Calculation steps:
[( 308 - 834 ) ÷ 834] x 100 = -63.07%
Formula
Percentage change = [(308 - 834) / 834] x 100
Subtract the new number by the original number
308 - 834 = -526
-526 ÷ 834 = -0.6306954436450839
-0.6306954436450839 x 100 = -63.07%