Unit 4 - Mid Unit Review

Front

What is percent decrease?

Back

Percent decrease is a measure of how much a quantity has decreased in relation to its original value, expressed as a percentage.

Front

How do you calculate percent decrease?

Back

Percent decrease can be calculated using the formula: ((Original Value - New Value) / Original Value) * 100.

Front

What is percent increase?

Back

Percent increase is a measure of how much a quantity has increased in relation to its original value, expressed as a percentage.

Front

How do you calculate percent increase?

Back

Percent increase can be calculated using the formula: ((New Value - Original Value) / Original Value) * 100.

Front

What is the formula to find what percent one number is of another?

Back

To find what percent one number (part) is of another number (whole), use the formula: (Part / Whole) * 100.

Front

If 10% of a number is 8, how do you find the number?

Back

To find the number, divide 8 by 0.10 (10% as a decimal): Number = 8 / 0.10 = 80.

Front

What is the relationship between percent and fractions?

Back

Percent is a way of expressing a number as a fraction of 100. For example, 20% is equivalent to 20/100 or 1/5.

Front

How do you convert a percentage to a decimal?

Back

To convert a percentage to a decimal, divide the percentage by 100. For example, 20% becomes 0.20.

Front

What is the original amount if 20% of it is 29?

Back

To find the original amount, divide 29 by 0.20: Original Amount = 29 / 0.20 = 145.

Front

What is the formula for calculating percent change?

Back

Percent change can be calculated using the formula: ((New Amount - Original Amount) / Original Amount) * 100.