Mortgage figure is a term used to refer to the interest RATE associated with a mortgage loan. This RATE is determined by the lender and can vary depending on the borrower's credit score, the amount of the loan, and other factors. The RATE is usually expressed as an annual percentage RATE (APR). The RATE is important because it affects the total cost of the loan, including the monthly payments and the total amount of interest paid over the life of the loan.