How does US State Tax is calculated

Summary:

For State Tax in Us, what is the precendence order ? Sometimes it calculates Residence State Tax and Sometimes Work State Tax.

We don't have the Work From Home Flag.

Content (please ensure you mask any confidential information):

I have gone through below, but I don't think so this sequence is getiing followed.

• If the employee is designated as work-at-home, it uses the state
  on their residence tax address.

• If the employee isn't
  work-at-home, it checks for a work address override.
  If there is, it uses the state identified on the override.

• It then checks for a
  work-location tax override.