9.48% is the change from 770 to 843
Calculation steps:
[( 843 - 770 ) ÷ 770] x 100 = 9.48%
Formula
Percentage change = [(843 - 770) / 770] x 100
Subtract the new number by the original number
843 - 770 = 73
73 ÷ 770 = 0.09480519480519481
0.09480519480519481 x 100 = 9.48%