A very simple game I cooked up in about 12 hours. Not too bad for a few minutes of fun.

The game is pretty intuitive. Press start to run a days worth of business.
Don't forget to make sure you have stock before you start the day.

Note: If your money drops into the negative, your loan amount will increase.

Update: I've realised that the UI was a bit screwy on some screen sizes. I'm 99% sure I have rectified the problem. Let me know if you have issues. I'm still learning how to get the UI working nicely in Unity :)