You have to go with $85,384 that is where you work.
This answer is of a general nature and should not be relied upon as final, nor is it intended as legal advice. Consult with a qualified attorney before making any legal decisions. Gen Kimura, (832) 247-6932.
I agree. The prevailing wage for an employment-based green card matter generally applies to the intended area of employment. However, if the position is subject to relocation, the prevailing wage should be obtained from the applicable area covering the employer's US headquarters and recruitment should be broad enough in scope to cover the anticipated work locations.