-95.86% is the change from 290 to 12
Calculation steps:
[( 12 - 290 ) ÷ 290] x 100 = -95.86%
Formula
Percentage change = [(12 - 290) / 290] x 100
Subtract the new number by the original number
12 - 290 = -278
-278 ÷ 290 = -0.9586206896551724
-0.9586206896551724 x 100 = -95.86%