The Return on Total Assets Ratio (ROTA) has a similar meaning to ROCE and the method of calculating it is the same, too. Let's work on ROTA with the Carphone Warehouse's figures: Return on Total Assets (ROTA) = PBIT * 100 Total Assets Notice that we use a different profit figure for this ratio - we use profit before interest and tax this time. This is because we try to match the profit we use with the total assets that operating managers use. Accountants would say that interest payments and tax payments are separate from the ways in which the total assets are used. That is, if we are trying to measure the efficiency of our total assets, then take the profit that they have generated before interest and taxation. Interest and tax problems are the senior managers' concern, since they decide how much to borrow and therefore how much interest they ought to pay; senior managers decide on capital investment, too, and they have a big say in how much tax they pay fo...