I'm very confused by your numbers here. Are you sure you haven't counted something twice? Let's say you're moving 10,000 units per month. You buy the stock fo

I'm very confused by your numbers here. Are you sure you haven't counted something twice? Let's say you're moving 10,000 units per month. You buy the stock for $50,000, get it delivered for $2,000 and store it for $1,000 - so you had to get an investment of $53,000 to set the business up. You sell the stock for $200,000. Making those sales, you spend $30,000 on shipping, $20,000 on credit card fees, and $40,000 on sales tax (assuming your "taxes means you net $6" means your country has a 20% sales tax which you included in your $20 selling price) At the end of the month you owe your investors $53,000 and you've got $110,000 of cash. You've basically doubled the initial investment in a month? That doesn't sound unprofitable to me, that sounds incredibly profitable.