Percentage - Examples, Exercises and Solutions

Understanding Percentage

Complete explanation with examples

What is a percentage?

A percentage is a number that expresses a part of 100100.
Quantity refers to the absolute number of something.
The percentage value refers to the quantity that corresponds to the specific percentage of the whole.

In order to solve questions about finding the quantity, percentage and percentage value, we use the following equation:
percentage100=percentage valuetotal quantity\frac{percentage}{100}=\frac{percentage~value}{total~quantity}

To solve percentage problems, we will use the following formula

We will always have 22 given values and one unknown that we need to determine.

Pay attention - The data in the question doesn't always direct us to what we're being asked. Therefore, we'll need to use logic and select the values that will provide us with the correct answer.

Detailed explanation

Practice Percentage

Test your knowledge with 25 quizzes

Calculate 25 over 100 as a percentage:

Examples with solutions for Percentage

Step-by-step solutions included
Exercise #1

Calculate 6% of 100:

Step-by-Step Solution

To solve the problem of calculating 6% of 100, we follow these clear steps:

  • Step 1: Convert the percentage to a fraction. The percentage 6% is equivalent to the fraction 6100 \frac{6}{100} .
  • Step 2: Multiply the whole number by this fraction. We calculate 6100×100 \frac{6}{100} \times 100 .
  • Step 3: Perform the calculation. Simplifying 6100×100 \frac{6}{100} \times 100 , we find:
6×100100=6 \frac{6 \times 100}{100} = 6

Therefore, the solution to the problem is 6.

Answer:

6

Video Solution
Exercise #2

Calculate 3% of 100:

Step-by-Step Solution

To solve this problem, we'll proceed with the following steps:

  • Step 1: Identify the given information
    We are given a percentage of 3% and a whole number of 100.
  • Step 2: Use the percentage formula
    The formula to calculate the percentage of a whole number is given by:
    Percentage value=percentage100×whole number \text{Percentage value} = \frac{\text{percentage}}{100} \times \text{whole number}
  • Step 3: Substitute the values and calculate
    Substituting the given values into the formula, we have:
    3100×100=3 \frac{3}{100} \times 100 = 3

Therefore, the 3% of 100 is 3 3 .

Answer:

3

Video Solution
Exercise #3

Calculate 32 over 100 as a percentage:

Step-by-Step Solution

To solve this problem, we'll follow these steps:

  • Step 1: Identify the given fraction 32100 \frac{32}{100} .
  • Step 2: Recognize that the denominator of 100 aligns directly with the meaning of percentage.
  • Step 3: Conclude that when the fraction is Part100 \frac{\text{Part}}{100} , it equals Part% \text{Part}\% .

Now, let's work through each step:

Step 1: The problem gives us the fraction 32100 \frac{32}{100} .
Step 2: Since the denominator is 100, the fraction directly represents a percentage.
Step 3: This means that 32100 \frac{32}{100} is simply 32% 32\% .

Therefore, the solution to the problem is 32% 32\% .

Answer:

32%

Video Solution
Exercise #4

Calculate 40 over 100 as a percentage:

Step-by-Step Solution

To solve this problem, we'll follow these steps:

  • Step 1: Use the percentage formula: (PartWhole)×100%\left(\frac{\text{Part}}{\text{Whole}}\right) \times 100\%.
  • Step 2: Substitute the given numbers: (40100)×100%\left(\frac{40}{100}\right) \times 100\%.
  • Step 3: Calculate the division, 40100=0.4\frac{40}{100} = 0.4.
  • Step 4: Multiply by 100 to convert to a percentage: 0.4×100=40%0.4 \times 100 = 40\%.

Therefore, 40 over 100 as a percentage is 40%40\%.

Answer:

40%

Video Solution
Exercise #5

Calculate 65 over 100 as a percentage:

Step-by-Step Solution

To find what percentage 65 is out of 100, use the formula:

Percentage=(PartWhole)×100 \text{Percentage} = \left( \frac{\text{Part}}{\text{Whole}} \right) \times 100

Substitute the given values:

Percentage=(65100)×100 \text{Percentage}=\left(\frac{65}{100}\right)\times100

Solve the expression:

Percentage=0.65×100 \text{Percentage}=0.65\times100

Percentage=65 \text{Percentage}=65

So, 65 out of 100 is 65%.

Answer:

65%

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