We just shipped a small calculator at /tools that helps sellers compute the cost difference between marketplace commissions and a flat subscription model. No signup, no login.
How to use it
- Drag the revenue slider to your closest monthly sales number.
- Drag the fee slider to the average percentage you usually pay.
- Compare the two result boxes: total to marketplace vs total to ShopTopia (Rp 99K flat).
- Check the monthly difference and annual projection in the dark box below.
The point isn’t to convince you to fully leave marketplaces, the realistic strategy is still hybrid. The point is to see how much margin you can claim from the repeat orders you do migrate.