-80.79% is the change from 890 to 171
Calculation steps:
[( 171 - 890 ) ÷ 890] x 100 = -80.79%
Formula
Percentage change = [(171 - 890) / 890] x 100
Subtract the new number by the original number
171 - 890 = -719
-719 ÷ 890 = -0.8078651685393259
-0.8078651685393259 x 100 = -80.79%