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Amortization refers to the process of paying off a debt (often from a loan or mortgage) over time through regular payments. [2] A portion of each payment is for interest while the remaining amount is applied towards the principal balance. The percentage of interest versus principal in each payment is determined in an amortization schedule.
An amortization calculator is used to determine the periodic payment amount due on a loan (typically a mortgage), based on the amortization process. [1] The amortization repayment model factors varying amounts of both interest and principal into every installment, though the total amount of each payment is the same.
The effective interest rate (EIR), effective annual interest rate, annual equivalent rate (AER) or simply effective rate is the percentage of interest on a loan or financial product if compound interest accumulates in periods different than a year. [1] It is the compound interest payable annually in arrears, based on the nominal interest rate ...
where: P is the principal amount borrowed, A is the periodic amortization payment, r is the periodic interest rate divided by 100 (nominal annual interest rate also divided by 12 in case of monthly installments), and n is the total number of payments (for a 30-year loan with monthly payments n = 30 × 12 = 360).
A financial calculator or business calculator is an electronic calculator that performs financial functions commonly needed in business and commerce communities [1] (simple interest, compound interest, cash flow, amortization, conversion, cost/sell/margin, depreciation etc.).
This yields an annualized flat rate of 12%, and an annualized effective or true rate of 19.05%. The true rate can also be calculated by iteration from the amortization schedule, using the compound interest formula. To keep quoted interest rates as low as possible, institutions also often call for one-time origination or administration fees.
Amortization is the acquisition cost minus the residual value of an asset, calculated in a systematic manner over an asset's useful economic life. Depreciation is a corresponding concept for tangible assets. Methodologies for allocating amortization to each accounting period are generally the same as those for depreciation.
is the annual effective interest rate, which is the "true" rate of interest over a year.Thus if the annual interest rate is 12% then =. (pronounced "i upper m") is the nominal interest rate convertible times a year, and is numerically equal to times the effective rate of interest over one th of a year.