0.6 Percent Proportion

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

To calculate the percentage of a number, multiply the number by the percentage (in decimal form) and then divide by 100.

25

Subtract the number of sold seats from the total seats (250 - 225 = 25), then divide by total seats (25/250) and multiply by 100 to get 10%.

15

To find what number a percentage represents, divide the percentage value by the percentage (in decimal form). For example, to find what number 40% of 36 is, use the formula: 36 / 0.4 = 90.

36

15

To find the number of girls, first calculate the number of boys: 40% of 200 = 80 boys. Then subtract from total: 200 - 80 = 120 girls.

Percentage = (Part / Whole) x 100.