20.1% is the change from 831 to 998
Calculation steps:
[( 998 - 831 ) ÷ 831] x 100 = 20.1%
Formula
Percentage change = [(998 - 831) / 831] x 100
Subtract the new number by the original number
998 - 831 = 167
167 ÷ 831 = 0.2009626955475331
0.2009626955475331 x 100 = 20.1%