Need help regarding numerical reasoning test

Hi,

For a numerical reasoning test, I see there are multiple tabs, each displaying different financials. One of the tabs has headline "revenues" but then the items are labeled as income (e.g, income independent of interest). The second tab has expenses, with the final line item called "expenses indepent from interests", Now, what confuses me, is another tab, which compares "expenses and income" as the only two categories. For "income", im not sure whether this refers to revenues or actual net income. Can someobody clarify? Thank you!