Finance Formulas / July 18, 2018 / Natalia Atkins
Compound interest is the addition of interest to the principal sum of a loan or deposit, or in other words, interest on interest. It is the result of reinvesting interest, rather than paying it out, so that interest in the next period is then earned on the principal sum plus previously accumulated interest. Compound interest is standard in finance and economics.
Contribution margin is a cost accounting concept that lets a company determine the profitability of its individual products. The phrase contribution margin can also refer to a per unit measure of a product's gross operating margin. It's calculated as the product's sale price minus its total variable costs per unit. This metric helps a company evaluate different areas of the business to determine the profitability of each service or product.
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