6.23% is the change from 770 to 818
Calculation steps:
[( 818 - 770 ) ÷ 770] x 100 = 6.23%
Formula
Percentage change = [(818 - 770) / 770] x 100
Subtract the new number by the original number
818 - 770 = 48
48 ÷ 770 = 0.06233766233766234
0.06233766233766234 x 100 = 6.23%