For the above test data I have tested today also.
Also today I have tested for 0 days ,without doing any GI today.
When I run the MC40 report for 0 days it shows the quantity as 3.
When I run the MC40 report for 1 days it shows the quantity as 3.
When I run the MC40 report for 2 days it shows the quantity as 3.
When I run the MC40 report for 3 days it shows the quantity as 10.
Any update on this logic please let me know.