15.64% is the change from 831 to 961
Calculation steps:
[( 961 - 831 ) ÷ 831] x 100 = 15.64%
Formula
Percentage change = [(961 - 831) / 831] x 100
Subtract the new number by the original number
961 - 831 = 130
130 ÷ 831 = 0.15643802647412755
0.15643802647412755 x 100 = 15.64%