Mortgage payment and credit? ?

How much would my payment be lowered by if my credit score went up 50 points to buy a house? We are in the process of looking for a new house. We were told that with a 685 credit score with spending 285k at 3.5% interest my payment would be 1800. How much would it change my payment if my score went up to 720 even? 

?2020-05-03T22:53:53Z

Your credit score does not equate directly to your monthly mortgage payment. That is between you and the lender.