-98.51% is the change from 806 to 12
Calculation steps:
[( 12 - 806 ) ÷ 806] x 100 = -98.51%
Formula
Percentage change = [(12 - 806) / 806] x 100
Subtract the new number by the original number
12 - 806 = -794
-794 ÷ 806 = -0.9851116625310173
-0.9851116625310173 x 100 = -98.51%