2.34% is the change from 770 to 788
Calculation steps:
[( 788 - 770 ) ÷ 770] x 100 = 2.34%
Formula
Percentage change = [(788 - 770) / 770] x 100
Subtract the new number by the original number
788 - 770 = 18
18 ÷ 770 = 0.023376623376623377
0.023376623376623377 x 100 = 2.34%