-84.9% is the change from 808 to 122
Calculation steps:
[( 122 - 808 ) ÷ 808] x 100 = -84.9%
Formula
Percentage change = [(122 - 808) / 808] x 100
Subtract the new number by the original number
122 - 808 = -686
-686 ÷ 808 = -0.849009900990099
-0.849009900990099 x 100 = -84.9%