You would like to implement investment strategies based on options. You are interested in W&W shares. The share is currently listed at 28. The annual volatility of this share is 25%. A European put option with a 3-month maturity and a strike price of 30 is available on the market. W&W will not distribute a dividend during the period under consideration. The risk-free interest rate with continuous capitalisation is 3% for all maturities. Using a three-step binomial tree (risk-neutral version), calculate the value of the option.