Percent Proportions

Front

What is a percent proportion?

Back

A percent proportion is a way to express a part of a whole as a percentage, often represented as a fraction where the numerator is the part and the denominator is the 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 = Percentage.

Front

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

Back

The formula to find the part is: Part = (Percentage/100) x Whole.

Front

If 20% of a number is 4, what is the whole number?

Back

To find the whole number, use the formula: Whole = Part / (Percentage/100). Here, Whole = 4 / (20/100) = 20.

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 then multiply by 100.

Front

What is the percentage increase formula?

Back

The percentage increase formula is: ((New Value - Original Value) / Original Value) x 100.

Front

What is the percentage decrease formula?

Back

The percentage decrease formula is: ((Original Value - New Value) / Original Value) x 100.

Front

How do you find the percent of a total?

Back

To find the percent of a total, divide the part by the total and multiply by 100. Formula: (Part/Total) x 100.

Front

What does it mean if a student scores 85% on a test?

Back

It means the student answered 85% of the questions correctly out of the total number of questions.

Front

How do you round a number to the nearest whole number?

Back

To round a number to the nearest whole number, look at the digit to the right of the decimal point. If it's 5 or greater, round up; if it's less than 5, round down.