Hello @Dushana0,
I hope that I've not misunderstood your question.
The total price shown to the guest and the price you set on your listing page will always be different.
The price on your listig page is the price you set in your "Base price" setting in the "Nightly price" section on your "Pricing" page.
You seem to charge the same rate for all dates and you don't have an extra people charge but Airbnb will still add the guest fee and any taxes to the total nightly charge.
I see your nightly rate as €66 so the cost for an 8 night booking from the 18/11/2018 to 26/11/2018 is shown as below.
€66 x 8 nights €529
Service fee €90 This is the Airbnb guest fee
Occupancy taxes and fees €131
If I try to book for a month it shows a discount of 10% which won't be shown on your listing price as how long any guest wants to stay can't be known until they enter the dates.
This means that it's not possible to show the total price on your listing and it becomes visible to the guest only when they've entered the dates and number of people staying.
Steve.