Q: What is the original amount of a number when the new amount is 210 and has a 75 percent increase?

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If 8 is increased to 12, the increase is what percentage of the original number?

Short answer: 0.69Take 100. 31% = 31, 100-31=69Of course, when you increase the result by 31 percent you do not get the 100 back. But that was not the question.But, for completeness what do I multiply by to get the number, when adding 31 percent, gives me the original number, it is 0.7633 (1/1.31)

Whether the change is an increase or decrease . . . -- Divide the new number by the original number. -- Multiply the result by 100. -- Subtract 100. -- Now you have the percent of change.

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 is a relative expression, meaning it has to be 8 percent of something. If you wanted to add 8 percent of a number to itself, e.g. something is $49.99 and you want to know how much 8 percent tax will bring your total to, you multiply the number by .08 (which is how 8 percent is represented as a decimal) and then add the result to the original number. So: 49.99 X .08 =3.99 so after tax you would pay roughly $53.99 hope this helps! If you have a calculator handy, then to add 8 percent to a quantity, say £675, just multiply the £675 by 1.08 and you will have the answer. This works because the original amount is 100% of itself, and adding on the extra 8% creates 108%, which means 108 hundredths, which as a decimal is 1.08 Similarly to find the amount when 17.5% is added, just multiply the original amount by 1.175

Related questions

If you multiply a number by 1.25 the answer will be the original amount plus 25% of the original amount. This is quicker and easier than figuring 25% and then adding.

If 8 is increased to 12, the increase is what percentage of the original number?

Ram : The amount of increase is the new value after growth less the original amount before the growth. The percent growth is the amount of increase times 100% divided by the original amount. As an example, let's say the number of employee in a company grows from 800 one year to 896 the next. First, subtract: 896 - 800 = 96. This is the increase. Next, divide by the original amount: 96(100%) / 800 = 12%. This is the percent increase.

It is a percentage change - unless the increase changes a negative number to a positive number or a decrease does the opposite.

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

First you subtract the new number from the original number then divide it by the original number and multiply that by 100 original-new __________*100 original

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

I think you subtract the new amount from the original amount and then move the decimal over twice to the right of the number and that's your percent. :)

580

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

Move the decimal point one number to the left and add your new number to the original.

The final result is 10.4% more than the original number.