I’m trying to calculate the average time a card spends in each phase. However, I'm noticing that the results change depending on the configuration.

—specifically when I add or remove "Phase Name" or "Current" from the Dimensions. When "Phase Name" is selected & “Current Phase” is added to the filters, the figures are different 

Could you please clarify:

• What exactly do "Phase Name" and "Current Phase" mean in this context?

• What is the correct way to structure this to get an accurate average time per phase? 

And do the date filters actually work: