Intro to Percentages Flashcard

Front

What is the formula to calculate percentage?

Back

Percentage = (Part / Whole) * 100

Front

If 25 out of 200 students passed an exam, what is the percentage of students who passed?

Back

12.5%

Front

What does the term 'denominator' refer to in percentage calculations?

Back

The denominator is the total or whole amount, which is always 100 in percentage calculations.

Front

How do you convert a fraction to a percentage?

Back

Multiply the fraction by 100.

Front

What percentage of 80 is 20?

Back

25%

Front

If a shirt originally costs $50 and is on sale for $30, what is the percentage discount?

Back

40% discount.

Front

What is the percentage increase if a price goes from $40 to $50?

Back

25% increase.

Front

How do you find the percentage of a number?

Back

Multiply the number by the percentage (in decimal form).

Front

What is the percentage of red apples if there are 30 red apples out of 120 total apples?

Back

25% red apples.

Front

If a student scores 45 out of 60 on a test, what is their percentage score?

Back

75%.