15.23% is the change from 729 to 840
Calculation steps:
[( 840 - 729 ) ÷ 729] x 100 = 15.23%
Formula
Percentage change = [(840 - 729) / 729] x 100
Subtract the new number by the original number
840 - 729 = 111
111 ÷ 729 = 0.1522633744855967
0.1522633744855967 x 100 = 15.23%