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Mathematics LibreTexts

4: Percents

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  • 4.1: Basics of Percents
    Percent means “per one hundred”. A percent is a ratio or fraction with a denominator of 100 .
  • 4.2: Percents Problems and Applications of Percent
    In this module, we will learn how to find the percentage rate and the base.
  • 4.3: Percents Problems and Applications Part 2
    This page explains how to determine the original value after a percent change, highlighting common mistakes of applying percentages to the new amount rather than the original. It includes examples like tax increases and discount decreases, alongside exercises for practice. The correct methodology involves dividing the new amount by 112% or 88%, depending on the context.


4: Percents is shared under a CC BY-SA license and was authored, remixed, and/or curated by LibreTexts.

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