From the Inventory page, select the product that you would like to list on your store 

Then click on the “Actions” button and select “List selected products”

On the next page, select which store you would like to list it on

Turn on the “All items to exiting ASIN” button and enter the ASIN where marked below 

If you want to list it as an FBA item than check the FBA checkbox if it is an FBM item than select the “Inventory source rule” from the dropdown. 

Under “Selling price” enter the selling price and turn on the switch to activate

Then click on “List” 

When completed, you should see a  green success popup