3.15% is the change from 951 to 981
Calculation steps:
[( 981 - 951 ) ÷ 951] x 100 = 3.15%
Formula
Percentage change = [(981 - 951) / 951] x 100
Subtract the new number by the original number
981 - 951 = 30
30 ÷ 951 = 0.031545741324921134
0.031545741324921134 x 100 = 3.15%