I-864 Sponsor income question

[xasuma 0]

Hello,
My wife's parents (who own a business) will be sponsoring me for the form I-864. I have all of the proper income/tax documentation from them.
However I am insure as to how to fill in their income into the form(s) [2 people = 2 forms] .
Since they share a business (and therefore most of their paperwork is together) I don't know if I should add their W-2's income + the income of the business divided by 2?

The income from their w-2's is not enough , so how would I add the income from the business onto that ?

If anyone knows what numbers I should use for this I would greatly appreciate it.

[NancyNguyen 1,657]

One files I-864 as joint sponsor. One files I-864a to let other use mutual income for sponsorship. Good luck.

[xasuma 0]

I see.
But on the income portion of it, I still don't know how to distribute their "income" . Each one of them has a w2 with some income. And they together have the 1040 (from the business) with the rest of the income.
The number from the form 1040 (line 22-total income) , do I split it in two and add it to each one of their individual w2's ? Since they both equally share the business ?

Also what is the difference between filling two I-864 forms, in comparison to filling one I-864 form and a I-864a ? (I never saw the I-864a in the instructions of the I-864, instead it said to fill another I-864) , I just want to make sure.

Thanks!

[xasuma 0]

Can anyone help me please? This is all I have left before sending all the paperwork. I would really appreciate it