You can go to the Managing Inventory in your Seller Central account to find " Your Minimum Price" and "Your Maximum Price." If you have not turn on the two columns, please go to  "Preferences" and turn on the column.

You can find the two column at the very bottom of the available columns.

After the Your Minimum Price and Your Maximum Price columns are added you should be able to edit the prices in your Seller Central. Please keep in mind, we recommend that you should either match Your Minimum Price and Your Maximum Price to the Min and Max at BQool or make the Min and Max range in BQool smaller than the Seller Central.