this selected information is from recent annual reports of the two largest retail pharmaceutical companies in the United States. (Dollar amounts are stated in billions.)

walgreen company rite aid corporation

net sales $71.6 $26.1

cost of goods sold ? 19.3

gross profit ? ?

gross profit margin(or rate) 28.4% ?%

total square feet of selling space 87 million 47 million

sales per square foot of selling space ? ?

a. fill in the missing amounts and percentages.( round all amounts to one decimal place.)

b. on the basis of the information provided above, do you expect Walgreen or Rite Aid to be more profitable and why?