Can someone explain some of the sandbox settings?

[Topher]

I hate to sound daft, but I don't fully understand some of the sandbox settings and I was wondering if someone could clear up what exactly the settings (that aren't self explanatory, like cost of building) do in the game.

Specifically:
- Base interest rate % (Is this on loans? As in, you wouldn't have to pay back at higher interest rate?)
- Margins %
- Demand variation
- Amplitude
- Frequency


Also, out of curiousity - If you set your Min Wage to lowest ($1), do the staff start off very angry at their wages? Or are they content for a while before the request for higher wages come in?

I did try to look for the answers but I was unsuccessful! Hopefully someone can shed some light, and if others are also unsure it will help them. :)

Thank you in advance!