To a retail business owner, what is "cost"

Entrepreneur magazine reports startup costs between $2,000 and $50,000 for different retail enterprises, from antique furniture sales to musical equipment sales. A figure of $30,000 to launch a retail operation is a good median number to work with.

totally answer

Cost is when they have to buy their products, they buy them at their cost, then they retail them at a higher price so they make a profit