If you are Age 14–78 then it's $1225 for I-485: https://www.uscis.gov/i-485
Is the I-130 petitioner a US citizen or LPR? When did you marry the petitioner?
I-130 and I-864 are filled-out by the petitioner, and the rest of the forms are filled-out by the immigrant. In general, send the following four packets (*note that I-765 and I-131 packets are optional, but highly recommended) in the same envelope to the Chicago Lockbox:
I-130 with I-130A and copy of marriage certificate, filing fees, etc.;
I-485 with I-864 and supporting documents, electronic I-94 copy, filing fees, etc.;
I-765 with electronic I-94 copy, etc.; and
I-131 with electronic I-94 copy, etc.
You'll separate each packet with rubber bands or fasteners: https://www.uscis.gov/forms/filing-guidance/form-filing-tips
On the I-130 packet, I-130 payment method (check, money order, or Form G-1450) must be the very first item of this packet.
On the I-485 packet, I-485 payment method (check, money order, or Form G-1450) must be the very first item of this packet.
You'll eventually have to go to a doctor that has Civil Surgeon designation from USCIS. https://www.uscis.gov/policy-manual/volume-8-part-b-chapter-4
Timing of the Submission of the Medical Examination Report
Applicants may submit the Form I-693 medical examination report to USCIS:
Concurrently with the immigration benefit application; or
At any time after filing the immigration benefit application but before USCIS finalizes adjudication of that application. If not submitted simultaneously with the immigration benefit application, applicants may bring the medical examination report to an interview or wait until USCIS issues an RFE requesting the medical examination report.
People are always telling others to go here and read this, so I was surprised to find it is not listed here in this thread.
Step-by-Step Guide on How to File AOS packet:
http://www.visajourney.com/content/i130guide2
