To meet your gross and net income requirements for the three-month period, you would need to earn at least $8,580 gross and $6,480 net. However, it's important to note that this is assuming that you have no deductions or exemptions that could affect your net income. Additionally, different states have different requirements for food stamp eligibility, so it may be a good idea to check with your local Department of Social Services to determine the specific income requirements for your area.