Problem:
The current price of a stock is $34, and the annual risk-free rate is 3%. A call option with a strike price of $31 and 1 year until expiration has a current value of $4.70.
Required:
Question: What is the value of a put option written on the stock with the same exercise price and expiration date as the call option?
Note: Please provide equation and explain comprehensively and give step by step solution.