7% is the change from 729 to 780
Calculation steps:
[( 780 - 729 ) ÷ 729] x 100 = 7%
Formula
Percentage change = [(780 - 729) / 729] x 100
Subtract the new number by the original number
780 - 729 = 51
51 ÷ 729 = 0.06995884773662552
0.06995884773662552 x 100 = 7%