Welcome to the world of percentages, where numbers take on a vibrant language of their own. Picture this: a symbol that transforms complex fractions into digestible bites, a key that unlocks the secrets of proportions, ratios, and relative magnitudes. This symbol is none other than “**%**,” and it brings with it a mathematical concept that transcends classrooms and permeates everyday life — the percentage.

## How to Calculate Percentage of Marks?

To calculate the percentage of marks, use the formula:

**Percentage of marks = (Total marks got /full marks ) * 100**

## What is a Percentage?

Percentages are fractions of numbers expressed in relation to 100, derived from the Latin word “**per centum**,” which means “**per hundred**.” They are represented as symbols %.

Calculate a percentage by taking a percentage of a whole and expressing it as a fraction.

### Examples:

**Question:** What is 20% of 50?

**Answer:** 10

**Question:** If you scored 75 out of 100 on a test, what is your percentage?

**Answer: **75%

**Question:** A shirt originally priced at $40 is on sale for 30% off. What is the sale price?

## How Percentage works?

Here’s a basic explanation of how percentages work:

**Conversion to Decimal:**To convert a percentage to a decimal, you divide it by 100. For example, to convert 25% to a decimal, you divide 25 by 100, resulting in 0.25.**Conversion from Decimal to Percentage:**To convert a decimal to a percentage, you multiply it by 100. For example, to convert 0.25 to a percentage, you multiply 0.25 by 100, resulting in 25%.**Calculations:**Percentages are often used in calculations involving ratios, proportions, and changes. For instance, if you have a quantity and you want to find what percentage it is of another quantity, you can use its formula.**Percentage Increase or Decrease:**If you want to find the percentage increase or decrease between two values, you can use its defined formula.

**Percentage Points vs. Percentages:** It’s important to distinguish between “**percentage points**” and “**percentages**.” A change of 1 percentage point is equivalent to a 1% change, but when discussing changes or differences, the term “**percentage point**” is used to avoid confusion.

## How to Calculate Percentage of Marks?

To calculate the percentage of marks, you can use the following formula:

**Percentage = Obtained Marks/Total Marks*100**

Here’s a step-by-step guide:

**Gather Information:**- Identify the total marks available for the assessment or exam.
- Determine the number of marks you obtained.

**Apply the Formula:**- Plug the obtained marks and total marks into the formula.
- Multiply the result by 100 to get the percentage.

**Examples:**

1) Say I scored 35 out of 50 on a test. What percentage did I achieve?

**Answer** =(35/50)×100=So it’s clear that I achieved a 70% score.

2) If I spent $20 out of your $30 weekly allowance, what percentage of my allowance did I spend?

**Answer** = (20)/(30)*100 = I spent approximately 66.67% of my weekly allowance.

## How to calculate the percentage of marks for 12th grade?

If you want to calculate the percentage of marks for the grade 12th class, then just follow the steps that you will get here. Simply, take total marks you got and then divide with the full available marks. Then give it a multiple with 100 and the provided one will be your percentage. See below for more clarification:

- Add all the marks that you obtained in all the subjects
- Divide the total marks obtained by the total number of marks
- Multiply the result by 100 to get the percentage

Here’s the formula for better understanding.

**Percentage of marks = (Sum of marks earned/Total marks available) * 100**

## How to calculate the percentage of a number?

To calculate the percentage of any number, you can divide the number by 100 and multiply it by the chosen percentage.

**Percentage of a number** = (Provided number/100) x Percentage.

**Example:** you can get 25% of 120 by following the below given steps.

**Percentage of a number**=(120)/( 100)×25

**Simplify: **

**Percentage of a number**=1.2×25 =30

## How to calculate the percentage of an amount?

**Example:** Calculate the amount percentage of 15% of $80

**Percentage of an Amount**=(Part Whole)×100

If you want to find 15% of $80:

**Percentage of an Amount**=(15/100)×80

**Percentage of an Amount**=(15)/(100)×80

**Percentage of an Amount**=0.15×80=12

## How to calculate the percentage of attendance?

An attendance percentage shows how often you have attended events, classes, or any scheduled activities. It provides a clear picture of your presence in relation to how many sessions were held.

**Formula:**

**Attendance Percentage**= (Number of Days Present/Total Number of Days)×100

**Attendance Percentage**= (Total Number of Days/Number of Days Present)×100

The purpose of this guide is to explain how to calculate your attendance percentage based on how many days you attended compared to how many days you missed.

## How to calculate the percentage of marks for 12th grade?

If you want to calculate the percent of marks you earned for the 12th class, take your total marks and divide them by the number of marks you are allowed. With this figure, multiply it by 100, to get the percentage.

- Make a list of all the marks you obtained in each subject
- In order to calculate the total marks achieved, divide them by the total number of marks.
- To find the percentage, multiply the result by 100.

The formula for better understanding is as follows.

**Percentage of marks = (Sum of marks got/full marks available) * 100**