Ключевые слова: abstract, account, accounting, analysis, background, banking, benefits, business, buy, calculator, cash, commerce, communication, contemporary, corporate, data, diagram, economy, exchange, finance, financial, funds, global, graph, income, innovation, invest, investigation, it, management, market, measurement, monetary, money, office, pen, performance, productivity, profits, research, revenue, rule, savings, sell, stock, success, supply, trade, world,