3.51% is the change from 770 to 797
Calculation steps:
[( 797 - 770 ) ÷ 770] x 100 = 3.51%
Formula
Percentage change = [(797 - 770) / 770] x 100
Subtract the new number by the original number
797 - 770 = 27
27 ÷ 770 = 0.03506493506493506
0.03506493506493506 x 100 = 3.51%