This is a basic way to build a mini -marketplace with Airtable. It uses Airtable forms to give ratings and average them out for users in your base.

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How it works:

• Start a main grid view in your Airtable base for your data and one base for ratings
• Our rating average is a formula field which takes the Average of a lookup field
• The lookup field is looking at the ratings base to see what was submitted
• Your rating base will need to 'link to multiple records' and point to your Marketplace base
• Create a form from your data in the Rating base
• When a user fills in the form, selects the user and submits a review - the average will be shown.