For example, if you want to calculate the percentage of how many days it rained in a month, you would use the number of days in that month as the total amount. So, let's say we are evaluating the amount of rain during the month of April, which has 30 days. Using the example above, let's say that it rained 15 days out of the 30 days in April. You would divide 15 by 30, which equals 0.
Continuing with the above example, you would multiply 0. Related: What is Aptitude? There are three main types of percentage problems you might encounter in both personal and professional settings. These include:. So, you would move to the second step as listed in the previous section. However, since you already have the percentage, instead of dividing you will want to multiply the percentage by the whole number.
This gives you an answer of Thus, the answer to this percentage problem would be " For a percentage problem in which you need to find the percentage, a question may be posed as the following: "What percent of 5 is 2?
For this type of problem, you can simply divide the number that you want to turn into a percentage by the whole. So, using this example, you would divide 2 by 5. This equation would give you 0. You would then multiply 0. For this type of percentage problem, you would want to divide the whole by the percentage given. This would give you 4. A percentage change is a mathematical value that denotes the degree of change over time. It is most frequently used in finance to determine the change in the price of a security over time.
This formula can be applied to any number that is being measured over time. A percentage change is equal to the change in a given value.
You can solve a percentage change by dividing the whole value by the original value and then multiplying it by The formula for solving a percentage change is the following:.
You would then divide this by the old price: 25 divide by equals 0. You will then multiply this number by 0. You will then divide this number by the old price: 25 divided by equals 0. You would then multiply this by 0.
You can use percentages to compare two different items that are related to each other. For example, you may want to determine how much a product cost last year versus how much a similar product costs this year. This calculation would give you the percent difference between the two product prices. In this formula, V1 is equal to the cost of one product, and V2 is equal to the cost of the other product.
You will then divide 5 by You will then multiply 0. That is, 0. Therefore, 0. Another example of converting a decimal to a percentage is 0. Then multiply 0. Then, multiply 0. Sometimes, you will be required to calculate percentages by working backward. This is also referred to as reverse percentages and it is used when the percentage and the final number are given and the original number is to be calculated.
The following are ways to calculate the percentage by working backward:. Divide the result of the multiplication by the percentage. You should multiply the final number as given in the math problem by The next and final step is to divide the result of the multiplication carried out under step two by the percentage number given in the question. Therefore, the original number was 1, Related: Your Guide to Careers in Finance.
Here are several examples of percentages and how to calculate them:. What is the price of a ticket this year? To convert the decimal number, 3. Therefore, 3. To convert the decimal number 0. Next, multiply the final price by Finally, divide the result by the percentage calculated in step 1 above.
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