Hi Denny,
Although your figures (fuel) don't look great, as Schoolhousefred says a lot depends on both the style of your driving and also where you do most of your driving such as urban. We live in the country at the top of a large hill and I would also say that we do about 20-30% urban driving. Driving wise we would drive swiftly but not hard and other than the odd blow out acceleration is average. Yet we find that we get between 15-20% below the combined figures.
Do you have an idea how you previous cars economy faired combined to published figures. As long as nothing other than the car has changed then you can expect similar mileage % wise.
Don