The world of microeconomics and business decision-making hinges upon a key concept: marginal cost. In the simplest terms, marginal cost represents the expense incurred to produce an additional unit of ...

Amy Fontinelle is a freelance writer, researcher and editor who brings a journalistic approach to personal finance content. Since 2004, she has worked with lenders, real estate agents, consultants, ...

To calculate your average trade price, add all purchase prices and divide by the number of trades. Use weighted average trade price calculation if share quantities vary per purchase. Weighted averages ...

Considering building a second location, purchasing a company, or entering a new market? Calculating the cost of equity can ensure your investment pays off. Investors and small business owners use the ...

People invest with the hope of earning a return over time. But what happens when you choose to sell? Cost basis is key to understanding your tax obligations and the true profit of your investments.