This is how you import your prices first. Go to Smoobu's Prices page and click on settings. Select "import prices"
Select the period for which you want to import the prices, from which portal you would like to import and then select "save".
You will now see the prices from that portal as your "Smoobu" prices, adapted by the percentage you had set for that particular portal. Let's say you have a 10% additional mark-up on Smoobu, so 110 Euros on booking.com would result in an imported price of 100 Euros.
You may also add a "Price adaption before import", which can be a fix value or a percentage. This will be calculated after the booking portal mark-up.
Now validate the price you have in the system and get ready to export the price to your other portals. Go to price sync settings.
Now select "Request to overwrite prices" and the prices will be exported to your other portals. Please note that this will result in all units being synchronized.