Total Column should match measurements in the table

Currently if I have a table showing Average Time in Stage for deal stages, the TOTAL column shows the data added up from the table. I was told this is working properly, but for logic and purpose sake, it is not.


For example, if there are 5 stages that average 1,2,3,4,5 across the table, then the total column displays 15, not 3. If I am measuring the average within a table, then all total columns/rows should be consistent with that measurement.