6.46% is the change from 789 to 840
Calculation steps:
[( 840 - 789 ) ÷ 789] x 100 = 6.46%
Formula
Percentage change = [(840 - 789) / 789] x 100
Subtract the new number by the original number
840 - 789 = 51
51 ÷ 789 = 0.06463878326996197
0.06463878326996197 x 100 = 6.46%