A stock has a price of $28 and an annual return volatility of 47 percent. The risk-free rate is 2.92 percent. Perform calculations in Excel.

a.	Calculate the call and put option prices with a strike price of $23.5 and a 90-day expiration. (Round your answers to 2 decimal places. Omit the "$" sign in your response.)

Call premium	$
Put premium	$

b.	Calculate the deltas of the call and put. (Negative amounts should be indicated by a minus sign. Round your answers to 4 decimal places.)

Call delta
Put delta