Symbols percent sign

Mathematical operations have specific rules for the use of mathematical symbols with SI units. A space or a half-high dot represents the multiplication of units a negative exponent, horizontal line, or slash represents the division of units, and if these mathematical symbols appear in the same line, parentheses must differentiate them. The percent sign (%) denotes the number 0.01 or 1/100, so that 1%= 0.01, 30% = 0.30, and so forth. Arabic numerals with the appropriate SI or recognized unit indicate the values of quantities. Commas are not used to separate numbers into groups of three. If more than four digits appear on either side of the decimal point, a space Table 3. Prefixes. separates the groups of three. 

Avoid using bullets or other symbols. Instead of a bullet, use an asterisk ( ) or a dash (-). Instead of using the percentage sign (%) for example, spell out the word percent. (In your resume, write "15 percent," not "15%".)... 

A percent is a ratio that compares a number to 100. The symbol for percent is %. You also are used to working with percents in your daily life. The number of correct answers on an exam may be expressed as a percent. If you answered 90 out of 100 queshons correctly, you would receive a grade of 90%. Signs like the one in Figure 20 indicate a reduction in price. If the item s regular price is 100, how many dollars would you save Sixty-five percent means 65 of every 100, so you would save 65. How much would you save if the sign said 75% off ... 

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