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, 50% means 50 out of 100.

Front

How do you convert a fraction to a percent?

Back

Front

What is the formula to find the percent of a quantity?

Back

The formula to find the percent of a quantity is: Percent = (Part/Whole) × 100. For example, if you have 20 out of 50 apples, the percent is: (20/50) × 100 = 40%.

Front

If 30% of a number is 60, what is the number?

Back

To find the number, use the formula: Number = Part / (Percent/100). Here, Number = 60 / (30/100) = 200.

Front

How do you find the percent increase?

Back

To find the percent increase, use the formula: Percent Increase = ((New Value - Original Value) / Original Value) × 100. For example, if a price increases from $50 to $60, the percent increase is: ((60 - 50) / 50) × 100 = 20%.

Front

How do you find the percent decrease?

Back

To find the percent decrease, use the formula: Percent Decrease = ((Original Value - New Value) / Original Value) × 100. For example, if a price decreases from $80 to $60, the percent decrease is: ((80 - 60) / 80) × 100 = 25%.

Front

What is the relationship between fractions, decimals, and percents?

Back

Front

How do you express a number as a percent?

Back

To express a number as a percent, multiply the number by 100. For example, to express 0.75 as a percent: 0.75 × 100 = 75%.

Front

What is 25% of 200?

Back

To find 25% of 200, use the formula: (Percent/100) × Whole. So, 25% of 200 = (25/100) × 200 = 50.

Front

If a shirt costs $40 and is on sale for 25% off, what is the sale price?

Back

To find the sale price, first calculate the discount: 25% of $40 = (25/100) × 40 = $10. Then subtract the discount from the original price: $40 - $10 = $30.