…
A percentage, often known as a percent, is a fraction of a number that is less than 100 percent. Percentage denotes a portion of a total amount and means "per one hundred".
For example, 45% represents 45 out of 100, or 45 percent of the total amount.
Percentage may also be referred to as "out of 100" or "for every 100".
For example, you could say either "it snowed 20 days out of every 100 days" or you could say "it snowed 20% of the time".
A percentage may be written in a few different ways. One way to write or denote a percentage is to portray it as a decimal.
For example, 24% could also be written as .24. You can find the decimal version of a percent by dividing the percentage by 100. A percent can also be depicted by using a percent sign or "%".
Multiply this fraction by 100 and add a percent sign. 100 * numerator / denominator = percentage . In our example it's 100 * 2/5 = 100 * 0.4 = 40 .
The change in a given value is equal to a percentage change. A percentage change can be solved by dividing the total by the original amount and multiplying by 100. The following is the formula for solving a percentage change:
For a price or percentage increase:
[(New Price - Old Price)/Old Price] x 100
For a price or percentage decrease:
[(Old Price - New Price)/Old Price] x 100
Before software should be reusable, it should be usable.
Ralph Johnson
…
…