6.94% is the change from 720 to 770
Calculation steps:
[( 770 - 720 ) ÷ 720] x 100 = 6.94%
Formula
Percentage change = [(770 - 720) / 720] x 100
Subtract the new number by the original number
770 - 720 = 50
50 ÷ 720 = 0.06944444444444445
0.06944444444444445 x 100 = 6.94%