9.29% is the change from 840 to 918
Calculation steps:
[( 918 - 840 ) ÷ 840] x 100 = 9.29%
Formula
Percentage change = [(918 - 840) / 840] x 100
Subtract the new number by the original number
918 - 840 = 78
78 ÷ 840 = 0.09285714285714286
0.09285714285714286 x 100 = 9.29%