3.49% is the change from 830 to 859
Calculation steps:
[( 859 - 830 ) ÷ 830] x 100 = 3.49%
Formula
Percentage change = [(859 - 830) / 830] x 100
Subtract the new number by the original number
859 - 830 = 29
29 ÷ 830 = 0.03493975903614458
0.03493975903614458 x 100 = 3.49%