Why is there a difference between net and gross profit?

Gross profit is the total amount of money that you get. And net profit is the amount left after you subtract your costs. For example, if you sold a toy on Ebay for 100.oo dollars. Your gross profit would be 100. You spent 30 dollars on the items and 6 dollars to list on ebay. subtract your expenses from you gross profit and then that is your NET Profit.