Do I need to know the negative amortization formula for mortgage loans?

Hello William, what do you need to know? you monthly payment? There are a lot of online calculation tools you can use which is very easy, here is one: "http://www.realtor.com/home-finance/" hope this helps.

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Knowing the negative amortization formula is not necessary when you are taking a mortgage loan. Rather than formulas, what you need to know is the negative amortization cap and schedule because your payments will increase when the recast limit is reached.

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