-60.31% is the change from 834 to 331
Calculation steps:
[( 331 - 834 ) ÷ 834] x 100 = -60.31%
Formula
Percentage change = [(331 - 834) / 834] x 100
Subtract the new number by the original number
331 - 834 = -503
-503 ÷ 834 = -0.6031175059952039
-0.6031175059952039 x 100 = -60.31%