Finding the Percentage of a Quantity

Front

What is the formula to find the percentage of a quantity?

Back

Percentage = (Part / Whole) x 100

Front

If 50% of a number is 30, what is the number?

Back

The number is 60.

Front

What does it mean to convert a fraction to a percentage?

Back

It means to express the fraction as a part of 100.

Front

How do you convert 75% to a decimal?

Back

0.75

Front

What is 10% of 200?

Back

20

Front

If a shirt costs $40 and is on sale for 25% off, how much is the discount?

Back

The discount is $10.

Front

What is the percentage increase if a price goes from $50 to $60?

Back

The percentage increase is 20%.

Front

How do you find 20% of a number?

Back

Multiply the number by 0.20.

Front

What is 15% of 80?

Back

12.

Front

If you have 200 marbles and 30% are red, how many red marbles do you have?

Back

You have 60 red marbles.