Density in Data Model showing -100%

[thakurdagautam]

Currently working on a data model and a synthetic key is being created and then the feilds on the synthetic key are showing density -100%.

Can someone please explain

[Lauri]

I am also seeing negative numbers in my data model under Density and also Non-null values. In fields that are not synthetic keys. What does it mean? 

[marcus_sommer]

Just resolve each synthetic key and circular loops and associate all tables properly and you will get a valid data-model.