-98.59% is the change from 853 to 12
Calculation steps:
[( 12 - 853 ) ÷ 853] x 100 = -98.59%
Formula
Percentage change = [(12 - 853) / 853] x 100
Subtract the new number by the original number
12 - 853 = -841
-841 ÷ 853 = -0.9859320046893317
-0.9859320046893317 x 100 = -98.59%