Math and Arithmetic

Percentages, Fractions, and Decimal Values

Top Answer

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.

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0There will be an overall increase in the first number.

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.

percent increase and decrease is how much percent it had increased from a certain amount of number, like discounts and markups

The increase is 60%

To find 17.5 percent of a number, multiply the number by 0.175.To increase a number by 17.5 percent, multiply the number by 1.175.

50% of a number, X, is 0.50X 54% of a number,X, is 0.54X .54X/.50 X = 1.08 = 8% increase

Multiply the number by 1.1

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

It is a 37.5% increase

Multiply your number by 1.1

The increase from 640 to 896 is 40%

It is an increase of about 4% rounded to the nearest whole number

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

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

An 800 percent increase.

Multiply the number you are increasing by 0.5

Multiply your number by 1.2.

The percent increase, X, of a number A to number B is X = (B-A)/A times 100 X = (38-29)/ 29 x 100 = 31%

You can't get a percent increase if the original number is 0. Anything that you divide by 0 is 0.

Multiply the number you are increasing by 0.39 then add the result to your number.

You multiply the percent ( so 40% = .4) by the number then add the product to the original number.

The percent of increase is 40%

It is: (2780-1250)/1250 times 100 = 122.4% increase

Quick way is to multiply it by 1.22

It is an increase of 8.88... percent (also an increase of 8 percentage points).

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