www.reference.com/article/steps-calculating-percent-97dbd160472754a0

The steps to calculate a percent of a given number are first converting the percent to a decimal value by dividing it by 100, then multiplying the given number by that decimal value. The steps to calculate what percent one number is of another are to divide the first number by the second number, the

www.reference.com/article/calculate-percents-416eae85e528f2f2

Percents are calculated by dividing a number by 100. Percentages are written as a fraction or a decimal. When referring to percents, it is similar to saying "per 100."

www.reference.com/article/calculate-percent-change-c61f1f6861c5ae73

The percentage of change can be calculated by using one of two formulas. The percentage of increase, or positive change, can be calculated as follows: increase ÷ original number × 100. The percentage of decrease, or negative change, can be calculated according to the following formula: decrease ÷ or

www.reference.com/article/figure-out-percent-basic-calculator-116d44aeb4859ff9

To calculate percentage, use the equation number/number = decimal *100 = percentage. On a calculator, type a number, followed by "/", another number, and then "=". A decimal appears on the screen. Multiply the decimal using the "x" and then type "100". The number on the screen is the percentage.

www.reference.com/article/calculate-population-growth-5b8ecfc4cf8308e9

Subtracting a past population value from the present population value, and dividing this result by the past population value, yields the population-growth rate. Multiplying the population-growth rate by 100 yields the growth percentage.

www.reference.com/article/calculate-sales-growth-d13312eb3f90e532

To calculate percent sales growth over a period, subtract the previous sales figure from the current sales figure, divide the result by the previous sales figure, and then multiply this number by 100, explains Michael Marz for the Houston Chronicle. In order to obtain the most accurate growth percen

www.reference.com/science/calculate-percent-efficiency-f25278c1a81859c

Percent efficiency is calculated by determining the actual output and then dividing by the maximum possible output. The result is multiplied by 100 in order to move the decimal two places to the right.

www.reference.com/world-view/calculate-population-s-growth-rate-c323cc96e3deff99

Calculate population growth rate by dividing the change in population by the initial population, multiplying it by 100, and then dividing it by the number of years over which that change took place. The number is expressed as a percentage.

www.reference.com/article/7-percent-sales-tax-calculated-df036a5b73688d01

To calculate a 7-percent sales tax, multiply the base price of the item by 0.07, states Basic-mathematics.com. Thus, tax on a $20 item would be equal to $2 times 0.07 or $1.40.

www.reference.com/world-view/percent-abundance-calculated-7c47f07466510342

Percent abundance can be calculated by finding the percentage of an isotope compared to another isotope of an element using its relative atomic mass. This is an algebraic process and depends upon several measurements.