How many points was a 4 night stay at a Cat 7 hotel under the old schedule. I need to change a reservation and want to know how many points I have to work with.

Unfortunately it was for a reservation under the old schedule at the Marriott Champs D'Lysee in PAris. I need to cahnge my dates and will probably have to stay at the Cat 6 Marriott Rive Guache now.