18.19% is the change from 830 to 981
Calculation steps:
[( 981 - 830 ) ÷ 830] x 100 = 18.19%
Formula
Percentage change = [(981 - 830) / 830] x 100
Subtract the new number by the original number
981 - 830 = 151
151 ÷ 830 = 0.1819277108433735
0.1819277108433735 x 100 = 18.19%