Percents, Percents, Percents!!

Front

What is a percent?

Back

A percent is a way of expressing a number as a fraction of 100. It is denoted by the symbol '%'. For example, 25% means 25 out of 100.

Front

How do you calculate percent decrease?

Back

Percent decrease is calculated by taking the difference between the original value and the new value, dividing that by the original value, and then multiplying by 100. Formula: ((Original - New) / Original) x 100.

Front

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

Back

To find a percentage of a number, multiply the number by the percentage (in decimal form). Formula: (Percentage / 100) x Number.

Front

What is the percent change formula?

Back

Percent change is calculated by taking the difference between the new value and the original value, dividing by the original value, and multiplying by 100. Formula: ((New - Original) / Original) x 100.

Front

What is 20% of 50?

Back

20% of 50 is 10. (0.20 x 50 = 10)

Front

If a shirt costs $40 and is on sale for $30, what is the percent decrease?

Back

The percent decrease is 25%. ((40 - 30) / 40) x 100 = 25%.

Front

What is 15% of 200?

Back

15% of 200 is 30. (0.15 x 200 = 30)

Front

How do you convert a fraction to a percent?

Back

To convert a fraction to a percent, divide the numerator by the denominator and then multiply by 100. For example, 1/4 = 0.25 = 25%.

Front

What is the meaning of 'tip' in terms of percent?

Back

A tip is a percentage of the total bill amount that is given to service workers as a reward for good service. Common tip percentages range from 15% to 20%.

Front

If attendance decreased from 300 to 240, what is the percent decrease?

Back

The percent decrease is 20%. ((300 - 240) / 300) x 100 = 20%.