Whatever business or profession you’re in,you have the capacity to generate finished goods or services that cost you less than their market value.
If you’re a plastic surgeon and you do face−lifts,a face−lift may have a market value of $4,000 but may actually cost you $400 in real,hard,incremental costs.
If you’re a manufacturer of sofas,a sofa may sell for $5,000,but cost only $500.If you have margin,you have built−in profit.