Percent Equations

Front

What is a percent?

Back

A percent is a ratio expressed as a fraction of 100. It represents a part of a whole.

Front

How do you calculate the percent of a number?

Back

To calculate the percent of a number, multiply the number by the percent (in decimal form). For example, to find 20% of 50, calculate 50 * 0.20 = 10.

Front

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

Back

The formula is: Whole = Part / (Percent in decimal form). For example, if 30 is 60% of a number, the whole is 30 / 0.60 = 50.

Front

If 25 is 20% of a number, what is the number?

Back

The number is 125. (25 / 0.20 = 125)

Front

What is the relationship between part, percent, and whole?

Back

The relationship can be expressed as: Part = Percent * Whole.

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 multiply by 100. For example, 1/4 = (1 ÷ 4) * 100 = 25%.

Front

What is 10% of 200?

Back

10% of 200 is 20. (200 * 0.10 = 20)

Front

What percent is 15 out of 60?

Back

15 out of 60 is 25%. (15 ÷ 60 = 0.25, then 0.25 * 100 = 25%)

Front

How do you find the percent increase?

Back

To find the percent increase, subtract the original value from the new value, divide by the original value, and multiply by 100. Formula: Percent Increase = ((New Value - Original Value) / Original Value) * 100.

Front

What is 45% of 80?

Back

45% of 80 is 36. (80 * 0.45 = 36)