# How Do You Find Percent Increase?

The percent increase in value is determined by finding the difference between the new value and the previous one. Divide the increase you find by the original value and multiply it by 100 to express it as a percentage.

For example, consider Katie, who last year invested \$100 in stock shares that are now valued at \$145.

To calculate the percent increase of her investment, she would simply subtract her initial investment, \$100, from the current value, \$145, to determine an increase of \$45.

This increase is then divided by the amount of the original investment, resulting in a quotient of .45, which equals 45 when multiplied by 100.

Therefore, Katie's investment saw an increase of exactly 45 percent.

In the same way, a number value less than the previous one indicates a decrease, and may be expressed as a percentage by subtracting the new, lesser value from the original one, dividing the difference into the original value and multiplying it by 100.

For example, if Greg's portfolio totaled \$4,000 at the beginning of the calendar year and decreased to \$3,600 at year's end, he experienced a loss in assets of 10 percent {(4,000 - 3,600) / 4,000 x 100}.

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