Need Advice on Completing CA Form 540NR

This happened again. My wife works for a University as a contractor in CA (we live in WA). She is 100% remote and didn't go to the state at all for her job. However, on her W2 they didn't correctly reflect her being out of state. So, she was charged CA state income tax.

I need some advice filling out the 2024 540NR form. Do I need to go through all the exemptions? We have 2 dependents etc. Or is there a quick and dirty way to get the basics to get the state income tax withheld back?

Thanks for any advice!!