The formula you will use to calculate the percentage value is: divide the specific part by the total amount, and multiply by one hundred.

Practice calculating percentages with real-world problems. Learn percentage formulas, discount problems, and step-by-step solutions to build confidence.
The formula you will use to calculate the percentage value is: divide the specific part by the total amount, and multiply by one hundred.

And now? Examples:
Michal bought cupcakes for her birthday party. She couldn't resist waiting for her friends to arrive, and ate cupcakes by herself before they came. What percentage of the cupcakes did she eat?
Solution
Total number of cakes:
The number of cakes she ate:
The calculation:
Lana's friends wanted to treat her with a birthday gift! They were interested in a dress that costs about Dollars, but the seller gave them a special discount of about Dollars. What percentage discount did Lana's friends receive?
Solution
Calculate 8% of 100:
Calculate 30 over 100 as a percentage:
In order to determine what percentage 30 is out of 100, you can use the following formula:
We begin by substituting the given values into the formula:
We then proceed to simplify the expression:
Therefore, 30 out of 100 is 30%.
Answer:
30%
Calculate 3% of 100:
To solve this problem, we'll proceed with the following steps:
Therefore, the 3% of 100 is .
Answer:
3
Calculate 32 over 100 as a percentage:
To solve this problem, we'll follow these steps:
Now, let's work through each step:
Step 1: The problem gives us the fraction .
Step 2: Since the denominator is 100, the fraction directly represents a percentage.
Step 3: This means that is simply .
Therefore, the solution to the problem is .
Answer:
32%
Calculate 25 over 100 as a percentage:
In order to determine what percentage 25 is out of 100, we use the following formula:
.
We begin by substituting in the known values:
.
Thus, 25 out of 100 is .
Answer:
25%
Calculate 40 over 100 as a percentage:
In order to determine what percentage 40 is out of 100, we use the following formula:
We begin by substituting in the known values:
We then proceed to solve the expression:
Thus, 40 out of 100 is 40%.
Answer:
40%