..like stores that has food stamp, they get money out of it righ..a profitt?
Profit is the money you've made after subtracting your expenses. Example, if you sell a pair of home made earrings for $20, and it cost you $1 for the hooks and $4 for the beads, then your profit is $15.
You can go further, if you like. If they took you an hour to make and you thought your time was worth $10, then your real profit is $5.
So if you make and sell 100 of them, your profit would be $500.
When a store works out its profit, it has to factor in many things before it makes a profit - the cost of the building, the salaries of the staff,utilities, etc, and the cost of the goods.
If you Re-invest those profits you can potentially gain earnings (depending on their performance)