19.01% is the change from 831 to 989
Calculation steps:
[( 989 - 831 ) ÷ 831] x 100 = 19.01%
Formula
Percentage change = [(989 - 831) / 831] x 100
Subtract the new number by the original number
989 - 831 = 158
158 ÷ 831 = 0.1901323706377858
0.1901323706377858 x 100 = 19.01%