0.6% is the change from 835 to 840
Calculation steps:
[( 840 - 835 ) ÷ 835] x 100 = 0.6%
Formula
Percentage change = [(840 - 835) / 835] x 100
Subtract the new number by the original number
840 - 835 = 5
5 ÷ 835 = 0.005988023952095809
0.005988023952095809 x 100 = 0.6%