-43.51% is the change from 285 to 161
Calculation steps:
[( 161 - 285 ) ÷ 285] x 100 = -43.51%
Formula
Percentage change = [(161 - 285) / 285] x 100
Subtract the new number by the original number
161 - 285 = -124
-124 ÷ 285 = -0.43508771929824563
-0.43508771929824563 x 100 = -43.51%