Business owners can reinvest profits to expand operations. Financial statements like the income statement track sales, expenses, net income, and cash flows. The income statement shows revenues minus costs equals net income, which plus depreciation equals cash flow to reinvest in new equipment. Businesses can also grow through mergers, where two companies combine legally and often take on aspects of both names. Mergers allow companies to grow faster, become more efficient, or acquire new products by joining with another firm making related or different products. Nonprofit organizations work to promote collective interests rather than seek profits, and revenues are reinvested in their mission. They include community groups, cooperatives, unions, associations, and some government agencies.