Commission rates and custom fees
Set your default commission and add recurring fees like booth rent.
There are two separate things that come out of a vendor's sales: your commission (a percentage of what sold) and any custom fees (fixed or percentage charges you define).

The default commission rate
In Settings → General, the Default Commission Rate is applied to every new vendor you add. Changing it doesn't alter vendors who already exist — adjust those on the vendor's own page.
Other standard fees
- Monthly Booth Fee — a fixed monthly charge per booth
- Processing Fee — a percentage covering card processing
- Minimum Payout Amount — a floor below which you'd rather roll the balance forward than cut a payment
Custom fees
Custom fees are for anything else you deduct — advertising contributions, cleaning, shared display costs. Each fee has a name, an amount, and a type (a flat dollar amount or a percentage of sales). You can apply a fee to every vendor or to specific vendors only.
Custom fees show up as their own line on the vendor's report, so they can see exactly what was deducted and why. They're also subtracted when calculating payouts on the Payments page.