My boss would like me to make a point of sales system, though I'm not quite sure where exactly to start. What he's looking for is something that will keep track of current stock, let us write up an order for someone (let's say they buy 2 of product a and 3 of product b it'll automatically add it all up etc) and then update the stock. Perhaps at the end of the day there can be a print out for him for what's low on stock or if we run out of things. Lastly (for now), he'd like a way to manage all the stock that we have - so if there's a sale on product a and he changes the price, he can update it on his end and our screens will update too if that makes sense?
Also, if we can have it print customer's receipts with our logo and whatnot instead of us having to hand write it, that would be handy, but I don't know if livecode can do that sort of stuff (also our printer probably won't print things out quickly I'm guessing, so that's maybe an optional feature if we get a better printer)
Any advice would be appreciated, because as it stands, I'm not even sure where to start with this project

Thanks in advance!