Percent Proportion

Front

What is percent proportion?

Back

Percent proportion is a way to express a number as a fraction of 100. It is often used to compare quantities and understand relationships between parts and wholes.

Front

How do you calculate the percent of a number?

Back

To calculate the percent of a number, use the formula: (part/whole) x 100. For example, to find what percent 42 is of 56, calculate (42/56) x 100 = 75%.

Front

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

Back

The formula is: whole = part / (percent/100). For example, if 198 is 33% of a number, the whole is 198 / (33/100) = 600.

Front

What does it mean if 150 is 15% of a number?

Back

It means that 150 is a fraction of the total number, which can be found using the formula: whole = part / (percent/100). Here, the whole is 150 / (15/100) = 1000.

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, 3/4 = (3 ÷ 4) x 100 = 75%.

Front

What percent of 70 is 21?

Back

30%. This is calculated by (21/70) x 100.

Front

If 13 out of every 20 cans are recycled, what percent is that?

Back

65%. This is calculated by (13/20) x 100.

Front

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

Back

The relationship is defined by the formula: percent = (part/whole) x 100.

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) x 100.

Front

What is a percent decrease?

Back

Percent decrease measures how much a value has decreased relative to its original value, calculated as: percent decrease = ((original value - new value) / original value) x 100.