In my opinion go for a % of the weekly takings.
When you start out it means no work no rent, that means no debt and worrying how to find that rent money at the end of the week. Leaves you free to worry about other things lol.
Once you are up and running and busy and know your average weekly takings you might want to go for a set rate. I Rent space and been on a 25% rent for 10 years now, so never had a sleepless night worrying over the rent money.Could you imgaine the rent for a space in the City of London??? Also the retail is soley mine and not included in the rent money.
Wow Feebeast, rents are cheap where you are, good deal !!!!