Interest is paid for borrowing money. There are different ways of calculating interest. Simple interest is a fixed percentage of the amount borrowed and is calculated on the original amount. The formula used is I =Prn where I is the interest, P is the amount initially borrowed, r is the rate of interest and n is the number of time periods borrowed for.
The video below helps explain concepts you might have been taught in your junior years and how they apply.
How to Calculate Simple Interest
The following videos explain how to approach a variety of questions.
Part 1: How to Calculate Using the Formula
Part 2: How to Calculate Yearly Interest Using the Formula
Part 3: How to Calculate Monthly Interest
Part 4: How to Calculate Interest on Credit Card Statements
Part 5: How to Rearrange the Simple Interest Formula to Find Unknown Values
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