Primo Plc manufactures and sells electric bicycles and have been successful in increasing their turnover by 12% in the last financial year, having raised the unit price for their main model to GBP700 from GBP645. The companys terms of sale are 1.5/12, net 45 but they plan to change this to 1.5/9, net 45. What difference will this make to Primo in situations where a client does not accept the discount? Calculate and explain your answer by comparing the interest rates of these two policies.