You can decide your own price keeping in mind following additional fee Flipkart charges on your every successful sale,
Settlement Account (Amount you get) = Order Item Value – Marketplace Fee – GST On Marketplace Fee (18% of Marketplace Fee)
Marketplace Fee = Commission Fee + Shipping Fee + Collection Fee + Fixed Fee
Account for the applicable Marketplace Fee and accordingly include a suitable margin to arrive at the Selling Price. Furthermore, for ease of calculation, you can use Flipkart’s Commission Calculator widget on the dashboard.
You can head on to this link for more detailed pricing information.