7.87% is the change from 839 to 905
Calculation steps:
[( 905 - 839 ) ÷ 839] x 100 = 7.87%
Formula
Percentage change = [(905 - 839) / 839] x 100
Subtract the new number by the original number
905 - 839 = 66
66 ÷ 839 = 0.07866507747318235
0.07866507747318235 x 100 = 7.87%