What is the procedure to convert H1b to premium processing

Hi

what is the procedure to convert H1b to premium processing?

My regular application is already 5 months over.
I see no change from day one.
Now I want to go with premium process.

What are the additional documents needed and how many $ additional we need to pay.

Thanks

sansu

My case was silimar cae like you…today received the approval…so have patience

Congrats…

Fees is $1225.00 and the employer needs to file completed I-907 form.