a company produces and markets industrial containers and packaging cases. due to competition the company proposes to reduce the selling price. If the present level of profits is to be maintained, indicate the number of units to be sold if the proposed reduction in selling price is- a) 5% b) 10% and c) 15% the following additional information is available: present sales(3000 units) (300000), variable cost(180000), fixed cost(70000), net profit(50000)