-18.08% is the change from 835 to 684
Calculation steps:
[( 684 - 835 ) ÷ 835] x 100 = -18.08%
Formula
Percentage change = [(684 - 835) / 835] x 100
Subtract the new number by the original number
684 - 835 = -151
-151 ÷ 835 = -0.18083832335329342
-0.18083832335329342 x 100 = -18.08%