-85.99% is the change from 835 to 117
Calculation steps:
[( 117 - 835 ) ÷ 835] x 100 = -85.99%
Formula
Percentage change = [(117 - 835) / 835] x 100
Subtract the new number by the original number
117 - 835 = -718
-718 ÷ 835 = -0.859880239520958
-0.859880239520958 x 100 = -85.99%