On the surface, an interest rate is just a number. How that number applies to debt or equity opens up a world of possibilities. The first consideration is always whether it’s simple interest vs.

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The TI-83 scientific calculator includes a finance-solving application that can do advanced calculations about the time value of money. It can also solve the basic equation for simple interest, which ...

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Steven Nickolas is a writer and has 10+ years of experience working as a consultant to retail and institutional investors. Suzanne is a content marketer, writer, and fact-checker. She holds a Bachelor ...