How to Find a Declining Percentage

Written by michael keenan
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How to Find a Declining Percentage
Investment losses can be measured as percentages. (Jupiterimages/ Images)

The size of a decline can be measured in raw numbers or percentages. For example, if you want to figure how much you lost from an investment, you would want to know not only the dollar amount, but how much you lost relative to the amount of money you invested. This is because a £65 loss would be insignificant if you invested £65,000, but if you invested £325, a £65 loss would be much more significant.

Skill level:
Moderately Easy

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  1. 1

    Subtract the beginning value from the ending value to find the decrease. For example, if you started with £422 in an investment and it dropped to £409, subtract £422 from £409 to get a decrease of £13.

  2. 2

    Divide the decrease by the original amount to get the decline measured as a decimal. In this example, divide £13 by £422 to get 0.0308.

  3. 3

    Multiply the decrease as a decimal by 100 to get the per cent decline. In this example, multiply 0.0308 by 100 to find the declining percentage to be 3.08 per cent.

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