How to get a count based on multiple criteria.

Hello,

I am working on metrics and some of our branches do not collect all of the same data.  So, I am trying to have the metrics reflect  only those records where the information is populated.  For example I am trying to calculate the percentage of claims where a servicer arrived the same day.  This is a data point that most, but not all of my branches collect. I am dividing the count of claims where the servicer arrived the same day by the total claim count and I would like the total claim count to only include the claims with specifc branch names.  I created a formula to get claim counts by one branch, but cannot add more than one "branch" name in the formula without getting an error.  = CALCULATE('Table'[Claim Count],'Table'[Branch] = "Branch A")

Maybe there is a different way to achieve what I need?

Thank you for any assistance!