-98.51% is the change from 807 to 12
Calculation steps:
[( 12 - 807 ) ÷ 807] x 100 = -98.51%
Formula
Percentage change = [(12 - 807) / 807] x 100
Subtract the new number by the original number
12 - 807 = -795
-795 ÷ 807 = -0.9851301115241635
-0.9851301115241635 x 100 = -98.51%