If the retailer in problem 1 can sell 400 printers at $155, what is the price elasticity of demand (expressed as a positive number) between the prices of $175 and $155?

a. 0.48
b. 1.83
c. 2.44
d. 3.05

Data from problems 1

A retailer can sell 100 printers per month at a price of $200 each or 275 printers per month at a price of $175 each. What is the elasticity of demand (expressed as a positive number)?