I want to build an application that will do the following: It is started with a price to purchase a combo. Ie, the user inputs that I want to purchase on a combo at 1.00. If the trade goes off enter a sell order at the average cost of the postion(s) + XX cents. Also enter an order to add to the position at average cost of the positon - XX cents. So each time a postion is added it figure the new avg cost and creates a sell order at average + XX cents. The app would stop when the postion count got to YY or if the postion count was zero. That is the sell order got hit. So here is the question.. could this be built using excel? I have no programing experience but I feel confident in excel.