Irrespective of their size, scope and sector, all organizations need robust accounting systems, making finance a core business function. In unit 3, students examine finance and accounts through both quantitative and qualitative methods. They learn how businesses represent themselves numerically through accounts; they also learn how to construct basic balance sheets and profit and loss accounts themselves. By the end of the unit, they will be able to explain the meaning of these accounts by calculating ratios (for example, gross profit margin, net profit margin and return on capital employed (ROCE)) and interpreting the results.