3.08% is the change from 747 to 770
Calculation steps:
[( 770 - 747 ) ÷ 747] x 100 = 3.08%
Formula
Percentage change = [(770 - 747) / 747] x 100
Subtract the new number by the original number
770 - 747 = 23
23 ÷ 747 = 0.030789825970548863
0.030789825970548863 x 100 = 3.08%