3.1% is the change from 968 to 998
Calculation steps:
[( 998 - 968 ) ÷ 968] x 100 = 3.1%
Formula
Percentage change = [(998 - 968) / 968] x 100
Subtract the new number by the original number
998 - 968 = 30
30 ÷ 968 = 0.030991735537190084
0.030991735537190084 x 100 = 3.1%