I don't understand how stocks work but I'm hoping someone can explain it to me given my short example here.
So on Monday, I purchased 2 stocks priced at $2.50 each, using an app on iOS called Robinhood. It advertises itself as the first free stock exchange, so I took it at its word. On Tuesday, I sold those stocks for $2.48 each. So you would think that I would only lose 4 cents correct? No. I lost 6 cents. Why? I thought stocks were just simple math. Buy low, sell high (obviously not in this case), but why does 2x2=6 in the stock market?