27.87% is the change from 610 to 780
Calculation steps:
[( 780 - 610 ) ÷ 610] x 100 = 27.87%
Formula
Percentage change = [(780 - 610) / 610] x 100
Subtract the new number by the original number
780 - 610 = 170
170 ÷ 610 = 0.2786885245901639
0.2786885245901639 x 100 = 27.87%