That is correct.
Values and moderates get 20% off during value season
Deluxes get 15% off
Values and moderates get 15% off during regular and peak season
Deluxes get 10% off
No discounts during holiday season.
Take the rack rate (full price), multiply by .80 (for the values/moderates during value season), and that is your room rate per night. Then you can multiply by 1.115 to see the room night with tax.