-75.78% is the change from 161 to 39
Calculation steps:
[( 39 - 161 ) ÷ 161] x 100 = -75.78%
Formula
Percentage change = [(39 - 161) / 161] x 100
Subtract the new number by the original number
39 - 161 = -122
-122 ÷ 161 = -0.7577639751552795
-0.7577639751552795 x 100 = -75.78%