David purchases 100 shares of a stock with market price of $36.85 per share. A call option on this stock with exercise price of $55 has a premium of $1.81. A put option with exercise price of $30 has a premium of $4.49. If David uses these two options to form a collar, what will be his net before-tax per share dollar return if the stock price is $41.05 at expiration? Round the answer to two decimals. Your