7.78% is the change from 835 to 900
Calculation steps:
[( 900 - 835 ) ÷ 835] x 100 = 7.78%
Formula
Percentage change = [(900 - 835) / 835] x 100
Subtract the new number by the original number
900 - 835 = 65
65 ÷ 835 = 0.07784431137724551
0.07784431137724551 x 100 = 7.78%