• Prominent (P): How much money your to start with borrowed. If the 1st amount borrowed is $eight hundred,000, this is the principal amount make use of so you're able to calculate your own mortgage payment -- not your current harmony.
• Rate of interest (r): Just like the loan's Annual percentage rate gives you a far greater image of brand new actual cost of borrowing from the bank money, into purposes of figuring their homeloan payment, utilize the loan's rate of interest. You to caveat, although -- before you use the loan algorithm, transfer your own interest rate so you can a decimal, right after which to help you a month-to-month rate of interest (because you happen to be calculating your own monthly homeloan payment).
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