I have updated the model.
The main new addition is creation of any strategy using 4 open positions (butterfly spread , bull spread , bear spread , strangle, straddle etc).
The user can buy as well as write options and can check out his payoffs in Indian Rupees. This model gets data from nseindia.com and refreshes every minute.
I have attached a picture of the output. The payoff is for a butterfly spread.
The user can choose the stock option, The 4 open positions , lower , higher , and interval figures and the number of lots to be bought. This payoff is as of 13th July 5:44 pm (markets have closed).
This payoff can easily be used for making trade calls.
I am also going to update the model for checking any arbitrage opportunities in call and option prices (which might exist in stock options)