How to calculate Profits, Losses, Commissions and Swaps for an order to be sended before sending it with OrderSend()

 
Before sending an order by OrderSend() to the market, I would know what will be the exact conditions of Profits, Losses, Commissions and Swaps to be applied to my order. What will be the exact way to calculate the exact account settlement. Thanks.
 

I do not pretend to know what will be the evolution of the market, and if I lose or gain. It's not that, but what I want to know from MQL4 is what conditions or percentages of commissions and swaps to be applied, broiled as multipliers, etc., to be applied to calculate the gain or loss will be; These data, which are characteristic of the instrument, and are searchable from Meta Trader 4 or from the conditions agreed with the Broker. Thank you very much.