-13.53% is the change from 961 to 831
Calculation steps:
[( 831 - 961 ) ÷ 961] x 100 = -13.53%
Formula
Percentage change = [(831 - 961) / 961] x 100
Subtract the new number by the original number
831 - 961 = -130
-130 ÷ 961 = -0.13527575442247658
-0.13527575442247658 x 100 = -13.53%