A consumer price index (CPI) is the relative measure of a market basket of consumer goods and services purchased by households.

Income statement (also referred to as profit and loss statement (P&L), revenue statement, statement of financial performance, earnings statement, operating statement or statement of operations is a company’s financial statement that indicates how the revenue (money received from the sale of products and services before expenses are taken out, also known as the “top line”) is transformed into the net income (the result after all revenues and expenses have been accounted for, also known as Net Profit or the “bottom line”).