-46.93% is the change from 309 to 164
Calculation steps:
[( 164 - 309 ) ÷ 309] x 100 = -46.93%
Formula
Percentage change = [(164 - 309) / 309] x 100
Subtract the new number by the original number
164 - 309 = -145
-145 ÷ 309 = -0.4692556634304207
-0.4692556634304207 x 100 = -46.93%