What will be the proceeds and net profits to an investor who purchases the July 2017 expiration Microsoft calls with exercise price $72 if the stock price at option expiration is $70? What if the stock price at expiration is $74?

Please explain the calculations as I need to understand how these differences in Calls ad Puts take place when calculating the payoff

Microsoft (MSFT) Expiration Strike June 16, 2017 70 June 16, 2017 72 June 16, 2017 74 Underlying stock price = $71.75 Call Put 2.02 0.24 0.67 0.90 0.13 2.37 70 2.40 0.58 July 7, 2017 July 7, 2017 July 7, 2017 72 74 1.15 0.42 1.32 2.59