Ok so this number needs to be factual and needs to have evidence backing it up... Take the gross earnings from a pay stub and multiply it by the number of paychecks received in a year (26 if paid every other week, 52 if paid weekly, etc.) Then back this up with copies of paystubs (the most recent 6 months as per the instructions on the I-864) Re-do the I-864, base that number on what the paystubs show as the current income, put the correct numbers in for the total income for the tax returns and include the tax return transcripts with no W-2s or 1099s. Include the required proof of citizenship, make sure household size is correct and come back here for any questions.