-98.53% is the change from 818 to 12
Calculation steps:
[( 12 - 818 ) ÷ 818] x 100 = -98.53%
Formula
Percentage change = [(12 - 818) / 818] x 100
Subtract the new number by the original number
12 - 818 = -806
-806 ÷ 818 = -0.9853300733496333
-0.9853300733496333 x 100 = -98.53%