-85.78% is the change from 830 to 118
Calculation steps:
[( 118 - 830 ) ÷ 830] x 100 = -85.78%
Formula
Percentage change = [(118 - 830) / 830] x 100
Subtract the new number by the original number
118 - 830 = -712
-712 ÷ 830 = -0.8578313253012049
-0.8578313253012049 x 100 = -85.78%