Elementary Arithmetic and Percentage
1.PERCENT
● DEFINITION OF PERCENT - Percent means parts per 100 The symbol is % Example: 25% means 25 per 100
● CONVERSION TECHNIQUES -
✔Changing percent to decimal
Change a percent to a decimal. Move the decimal point two places to the left. In a percent, the decimal point would come at the end of the last number (for 75%, envision that it looks like 75.)
Examples:
75% converts to .75
40% converts to .40
3.1% converts to .031
✔Changing decimal or whole number to percent
Change a decimal to a percent. Move the decimal point two places to the right.
Examples:
.32 becomes 32%
.07 becomes 7%
1.25 becomes 125%
.083 becomes 8.3%
✔Changing percent to fraction
Change a percent to a fraction. The percent becomes the numerator, which you divide over 100 and then simplify, or reduce to its lowest form.
Example: 36% turns to 36/100.
To simplify, look for the highest number that goes into 36 and 100. In this case, that would be 4.
Determine how many times 4 goes into 36 and 100. When you simplify, the answer would be 9/25.
✔Changing fraction or mixed numbers to percent
Converting a Fraction to a Percent
Do the following steps to convert a fraction to a percent:
For example: Convert 4/5 to a percent.
Divide the numerator of the fraction by the denominator (e.g. 4 ÷ 5=0.80)
Multiply by 100 (Move the decimal point two places to the right) (e.g. 0.80*100 = 80)
Round the answer to the desired precision.
Follow the answer with the % sign (e.g. 80%)
●ALIQUOT PARTS
✔ALIQUOT PARTS OF 100%
CONVERTING COMMONLY USED FRACTIONS TO ALIQUOT PARTS OF 100%
Fractions are easily converted to aliquot percents. Just divide the numerator by the denominator and convert the decimal to a percent. Carry the answer out to two decimal places. If there is a remainder, express it as a fraction.
●Markup
The markup percentage can best be defined as the increase on the original selling price. The markup sales are expressed as a percentage increase as to
● DEFINITION OF PERCENT - Percent means parts per 100 The symbol is % Example: 25% means 25 per 100
● CONVERSION TECHNIQUES -
✔Changing percent to decimal
Change a percent to a decimal. Move the decimal point two places to the left. In a percent, the decimal point would come at the end of the last number (for 75%, envision that it looks like 75.)
Examples:
75% converts to .75
40% converts to .40
3.1% converts to .031
✔Changing decimal or whole number to percent
Change a decimal to a percent. Move the decimal point two places to the right.
Examples:
.32 becomes 32%
.07 becomes 7%
1.25 becomes 125%
.083 becomes 8.3%
✔Changing percent to fraction
Change a percent to a fraction. The percent becomes the numerator, which you divide over 100 and then simplify, or reduce to its lowest form.
Example: 36% turns to 36/100.
To simplify, look for the highest number that goes into 36 and 100. In this case, that would be 4.
Determine how many times 4 goes into 36 and 100. When you simplify, the answer would be 9/25.
✔Changing fraction or mixed numbers to percent
Converting a Fraction to a Percent
Do the following steps to convert a fraction to a percent:
For example: Convert 4/5 to a percent.
Divide the numerator of the fraction by the denominator (e.g. 4 ÷ 5=0.80)
Multiply by 100 (Move the decimal point two places to the right) (e.g. 0.80*100 = 80)
Round the answer to the desired precision.
Follow the answer with the % sign (e.g. 80%)
●ALIQUOT PARTS
✔ALIQUOT PARTS OF 100%
CONVERTING COMMONLY USED FRACTIONS TO ALIQUOT PARTS OF 100%
Fractions are easily converted to aliquot percents. Just divide the numerator by the denominator and convert the decimal to a percent. Carry the answer out to two decimal places. If there is a remainder, express it as a fraction.
●Markup
The markup percentage can best be defined as the increase on the original selling price. The markup sales are expressed as a percentage increase as to