8.69% is the change from 840 to 913
Calculation steps:
[( 913 - 840 ) ÷ 840] x 100 = 8.69%
Formula
Percentage change = [(913 - 840) / 840] x 100
Subtract the new number by the original number
913 - 840 = 73
73 ÷ 840 = 0.0869047619047619
0.0869047619047619 x 100 = 8.69%