Dynamic Average in Threshold

Dynamic Average in Threshold

Hello, 

I have a graph that shows the total count per each as the Y-Axis and the dates as X-Axis and have some job types set as Color. For some reason when I use the threshold feature in Zoho Analytics, I get a different average from what I manually compute. As you can see from this graph below, the average that zoho gave me for the whole table is 4.33 but if I compute it manually (117 total count / 3 job types = 39 / 10 no. of months = 3.9). I wanted to use Zoho's threshold feature and select your average since it is dynamic but it doesn't seem to work correctly. Kindly take note as well that I have filters set so I don't know if that affects the average calculation zoho comes up with.