Assume that the price of DF stock went from a price of $104 on March 2 to 146 on April 1.
With a current stock price of 146,
Invest all of your amount 14,600 in the DF stock (buy 100 shares)
Calculate the payoff and 6-month return for this investment alternative by assuming that the stock price is observed to be 50 on 6 months later.
I calculate payoff as follows
$$\pi = 100* ( 50- 146)= - 9600$$
But how can I calculate the 6 month return for this investment?