Clarification on MemoryStoreService's method quota costs

I am trying to write some code using MemoryStoreService and want to ensure that I am not trying to do too much/too little when it comes to using the quota specified. It is stated as 1000 + 100x, where x is the number of users on your experience.
When dealing with DataStores, different method affect its quota differently. I cannot seem to find any information on this on the forums or in documentation. For example through testing I am lead to believe that UpdateAsync in SortedMaps uses 2 quota credits per call. However it would be nice for confirmation on this as well as any other information on the other methods.