Percent Proportion

Front

What is percent proportion?

Back

Percent proportion is a way to express a number as a fraction of 100. It is often used to compare a part to a whole.

Front

How do you calculate the percentage of a number?

Back

To calculate the percentage of a number, divide the part by the whole and then multiply by 100. Formula: (Part/Whole) x 100.

Front

What is the formula to find the part when given the percent and whole?

Back

The formula is: Part = (Percent/100) x Whole.

Front

If 30% of a number is 15, what is the number?

Back

The number is 50. (15 = 30% of x; x = 15/(30/100) = 50).

Front

What does it mean if a student scores 80% on a test?

Back

It means the student answered 80 out of 100 questions correctly, or got 80% of the questions right.

Front

How do you convert a fraction to a percentage?

Back

To convert a fraction to a percentage, divide the numerator by the denominator and multiply by 100.

Front

What is 40% of 200?

Back

40% of 200 is 80. (0.40 x 200 = 80).

Front

If there are 60 books and 24 are nonfiction, what percent are nonfiction?

Back

40% of the books are nonfiction. (24/60 x 100 = 40%).

Front

What is the percent increase if a price goes from $50 to $75?

Back

The percent increase is 50%. ((75-50)/50 x 100 = 50%).

Front

How do you find the total when given a part and its percentage?

Back

Total = Part / (Percent/100).