17.95% is the change from 830 to 979
Calculation steps:
[( 979 - 830 ) ÷ 830] x 100 = 17.95%
Formula
Percentage change = [(979 - 830) / 830] x 100
Subtract the new number by the original number
979 - 830 = 149
149 ÷ 830 = 0.17951807228915662
0.17951807228915662 x 100 = 17.95%