I need to take a commission as a percentage of each purchase on monthly basis.
For ex. merchant ABC sells a product costed $100 on Jan 5. I expect to get commission $8.
Next day merchant ABC sells a product costed $200. I expect to get commission $16.
And so on
As the result I want to have $24 as monthly commission form merchant ABC.
What’s the easiest way to implement this workflow? What’s Shopify offer?