-98.5% is the change from 801 to 12
Calculation steps:
[( 12 - 801 ) ÷ 801] x 100 = -98.5%
Formula
Percentage change = [(12 - 801) / 801] x 100
Subtract the new number by the original number
12 - 801 = -789
-789 ÷ 801 = -0.9850187265917603
-0.9850187265917603 x 100 = -98.5%