-94.41% is the change from 161 to 9
Calculation steps:
[( 9 - 161 ) ÷ 161] x 100 = -94.41%
Formula
Percentage change = [(9 - 161) / 161] x 100
Subtract the new number by the original number
9 - 161 = -152
-152 ÷ 161 = -0.9440993788819876
-0.9440993788819876 x 100 = -94.41%