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To increase a number by 15 percent, multiply the number by 1.15. For example, 60 plus 15 percent is equal to 60 x 1.15 = 69.

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How do you increase a number by a percent?

To increase a number by a certain percent, multiply it by (1 + n/100). For example, to increase a number by 15 percent, multiply it by (1 + 15/100), or 1.15. To decrease a number by 15 percent, multiply it by (1 - 15/100), or 0.85.


How do you find the percent increase in numbers?

To increase a number by a certain percent, multiply it by (1 + n/100). For example, to increase a number by 15 percent, multiply it by (1 + 15/100), or 1.15. To decrease a number by 15 percent, multiply it by (1 - 15/100), or 0.85.Read more: http://wiki.answers.com/How_do_you_increase_a_number_by_a_percent#ixzz17Zw2XWuo


How do you calculate a 1.5 percent increase?

To increase a number by 15%, multiply it by 1.15 .


By what percent did the number of households increase from 1990 to 2000?

15%


What is the percent increase from 10 to 25?

to calculate the percent increase . first = 25 - 10 = difference between the two numbers = 15 then divide this differnece by the original starting number (which is 10)= 15 divided by 10 = 1.5 to make this a percent increase multiply by 100 . so you result is 1.5 x 100 = 150% to summarise: ((final number- starting number) / starting number) x 100 = percent increase


What is a 15 percent increase of 11.50?

A 15 percent increase of 11.50 gives a new value of 13.23


What do multiply by to increase an amount by 15 percent?

To increase an amount by 15 percent, you should multiply it by 1.15. This is because 1 represents the original amount, and 0.15 represents the 15 percent increase. For example, if you have an amount of $100, multiplying it by 1.15 results in $115, which reflects the 15 percent increase.


What is the percent increase from 15 to 34?

About a 125% increase.


What is the percent of increase from 8 to 15?

87.5% increase


What is the percent increase from 120 to 138?

This is a 15% increase.


What is the percent increase 15 to 100?

566.67% increase.


What is the percent increase from 15 to 19?

26.67% increase.