Neco 2018 Data Processing Question 44

A shop buys \(120\) units of a product at \(\text{₦}2,500\) each. The supplier offers a 10 % discount on the total purchase if payment is made within 30 days; otherwise no discount. The shop sells each unit at a marked price of \(\text{₦}3,500\). It offers a 5 % discount on the marked price for cash customers, and a further 2 % discount on that discounted price for bulk buyers (who buy at least 20 units). Sales tax of 7.5 % is applied on the final selling price. The shop also incurs monthly overhead of \(\text{₦}15,000\) and depreciation of \(\text{₦}8,000\) per month. Assuming the shop sells \(100\) units in cash and \(20\) units as bulk purchases, and pays the supplier within 30 days, compute the net profit for the month.