Question: How do you measure product that has largest percentage of a category's business?

...Sales at RetailSales at CostQuantity SoldFreightTotal CostGross MarginMargin %AUPProduct 1$73,594$40,169987$482$40,651$33,42545%$74.56Product 2$108,009$75,68557$1,287$76,972$32,32430%$1,894.89Product 3$54,655$20,8906396$272$21,162$33,76562%$8.55Category N$236,258$136,7447440$2,041$138,785$99,51442%$31.76Products 1-3 are products within Category N (which is the sum of all three)So I am working on this bit of homework. It is asking me what product has the largest percent of the category's business and what is it. The question to me seems a bit ambiguous and I am unsure what number it's looking for. via /r/business http://ift.tt/2rNRH08