Percentage of Mastery Formula Quiz and Flashcards

What is the process for finding n% of x?

If a company had a 137% increase in production, how many products were produced in the second year?

What is 112% of $18?

What happens to a number when the percentage used is greater than 100?

What is the result of dividing 20 by 100 and then multiplying by 18?

What is the algorithm for finding the percentage of a number?

What does 'percent' mean?

If a person is getting a 25% raise on a salary of $40,000, how much more will they be making annually?

If a product is discounted by 30% and now costs $70, what was its original price?

If 15% of a number is 45, what is the number?

Finding a Percentage of a Number

To find n% of x, multiply x by (n/100)

Percent Increase

If a company has a 137% increase in production, it means they produced 137% more products in the second year compared to the first year
To find the number of products produced in the second year, multiply the original number by (1 + 137/100)

Calculating Percentages

112% of $18 is calculated by multiplying $18 by (112/100)
When the percentage is greater than 100, the result is greater than the original number

Dividing by 100 and Multiplying

Dividing 20 by 100 gives 0.2, and multiplying it by 18 gives 3.6

Algorithm for Finding a Percentage

The algorithm for finding the percentage of a number is: (part/whole) x 100

Meaning of 'Percent'

'Percent' means 'per hundred', and is a way to express a value as a fraction of 100

Salary Raise

If a person gets a 25% raise on a $40,000 salary, they will get an increase of $10,000 (25% of $40,000) and their new salary will be $50,000

Discounted Product

If a product is discounted by 30% and now costs $70, its original price was $100 (since $70 is 70% of $100)

Finding the Original Number

If 15% of a number is 45, the number can be found by dividing 45 by 0.15 (15% as a decimal)

Test your knowledge on finding the percentage of a number with this interactive quiz. Learn how to calculate percentages and apply them in real-life scenarios. Master the skill of determining percentages effortlessly.