-78.72% is the change from 846 to 180
Calculation steps:
[( 180 - 846 ) ÷ 846] x 100 = -78.72%
Formula
Percentage change = [(180 - 846) / 846] x 100
Subtract the new number by the original number
180 - 846 = -666
-666 ÷ 846 = -0.7872340425531915
-0.7872340425531915 x 100 = -78.72%