1.72% is the change from 815 to 829
Calculation steps:
[( 829 - 815 ) ÷ 815] x 100 = 1.72%
Formula
Percentage change = [(829 - 815) / 815] x 100
Subtract the new number by the original number
829 - 815 = 14
14 ÷ 815 = 0.01717791411042945
0.01717791411042945 x 100 = 1.72%