> Maybe they mark up 2% and the annualized profit is 100%. That's not how profit works. If you spend $100 to make $102, that's a 2% margin. If you do that ev

> Maybe they mark up 2% and the annualized profit is 100%. That's not how profit works. If you spend $100 to make $102, that's a 2% margin. If you do that every week, you've spent $5200 to make $5304: still a 2% margin. You don't get to count only the margin every week, you have to count the outlay every week too...