-48.22% is the change from 309 to 160
Calculation steps:
[( 160 - 309 ) ÷ 309] x 100 = -48.22%
Formula
Percentage change = [(160 - 309) / 309] x 100
Subtract the new number by the original number
160 - 309 = -149
-149 ÷ 309 = -0.48220064724919093
-0.48220064724919093 x 100 = -48.22%