The document Important Formulae: Interests CAT Notes | EduRev is a part of the Quant Course Quantitative Aptitude (Quant).

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- Amount = Principal + Interest
- Simple Interest = PNR/100
- Compound Interest =
- Population formula P’ =
- Depreciation formula = Initial Value x
**EduRev's Tip:**SI and CI are same for a certain sum of money (P) at a certain rate (r) per annum for the first year. The difference after a period of two years is given by

⇒ Δ = PR^{2}/100^{2}

**Growth and Growth Rates**

Absolute Growth = Final Value – Initial Value

Growth rate for one year period =

SAGR or AAGR =

CAGR = **EduRev's Tip: **If the time period is more than a year, CAGR < AAGR. This can be used for approximating the value of CAGR instead of calculating it.

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