-98.63% is the change from 873 to 12
Calculation steps:
[( 12 - 873 ) ÷ 873] x 100 = -98.63%
Formula
Percentage change = [(12 - 873) / 873] x 100
Subtract the new number by the original number
12 - 873 = -861
-861 ÷ 873 = -0.9862542955326461
-0.9862542955326461 x 100 = -98.63%