
The wholesale cost of a pen is $1.32 and the retail price of the pen is $3.78. 
The retail price of a laptop computer is $980 and the wholesale price is $612. 
There is a Tshirt in the mall selling for $22.00 and it only cost the manufacturer $2.28 to make it. 
The wholesale price of a notebook is $0.77 and the retail price is $1.27. 
