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A percentage is a way of expressing a number as a part of a whole. The whole is typically 100. For example, 50% means 50 out of 100. To make the concept of percentage clearer, visualize it as a portion of a pie. If you have a pie and you eat 50% of it, that means you鈥檝e eaten half of it.
Understanding how to work with percentages is important in everyday scenarios such as calculating discounts, grades, and interest rates.
Here鈥檚 a quick tip: When you see the percentage symbol (%), always think 'per hundred.' This will help you in converting percentages to other formats like decimals and fractions.

Converting percentages to decimals is an essential skill. It involves changing a percentage to a form that doesn鈥檛 use the percent sign, %.
To convert any percentage to a decimal, simply divide it by 100. This means moving the decimal place two positions to the left. For example, to convert 25% to a decimal, you divide 25 by 100, resulting in 0.25.
When you see a percentage like 6.4%, the same rule applies. To convert 6.4% to a decimal, we move the decimal point two places to the left. So, 6.4% becomes 0.064.
In general, the formula for percent to decimal conversion is:
\[ \text{Decimal} = \frac{\text{Percentage}}{100} \]

Fractions represent parts of a whole. They are written with one number over another, separated by a slash. The top number is called the numerator, and the bottom number is the denominator. For example, in the fraction 1/2, 1 is the numerator, and 2 is the denominator.
Every percentage can be converted into a fraction. For instance, 6.4% can be written as 6.4/100. This represents 6.4 parts out of 100.
Fractions can then be converted into decimals by performing division. So for 6.4/100, you divide 6.4 by 100 to get 0.064.
Using fractions is another way to understand percentages and their conversions. This method allows for a clearer picture of how percentages relate to whole numbers and decimals.