I own a smallish shop and when I buy fabric from a wholesaler, they do not give me extra to throw in with my customer's order. If I order 15 yards, I get 15 yards--no more, sometimes a bit less when the fabric is rolled on the bolt wonky. If I give every customer that wants a 1/4 yard an extra inch or two of fabric, then I will be short about two yards of fabric by the end of the bolt. There are 60 -1/4 yards in 15 yards. 60 x 1 inches=60 inches. I am now out from $12-$18 dollars (depending on the price of the fabric). It doesn't sound like much, but when all added up, it makes a difference whether I can pay the bills or not.