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Spell out numbers one through nine except in statistical matter. Use figures for 10 and above. This also applies to adjectival numbers.



The first three parking lots will provide spaces for 540 cars.
The new house is 80 percent finished; the interest rate is 5.25 percent.

Do not abbreviate years in the 21st century. The exception is class year designations.

1999-2000 not 1999-00
The new degree program will begin in fall 2004.
A reception for the class of '00 will be held immediately after commencement.

Use numbers for parts of a book.

For further data refer to figure 9 and table 2 on page 8.

With o'clock, spell out the time of day in text material, but use numbers with a.m. or p.m. Periods are used in a.m. and p.m. Avoid redundancy.

The meeting is at nine o'clock in the evening.
The meeting is at 9 p.m.

12 p.m. or noon but not 12 noon

8 p.m. but not 8 p.m. in the evening

When making a reference to time, do not use zeros for the hour in text. An exception may be made when times are used in tabulation.

The bus stops here between 3 and 3:30 p.m.

Buses stop running at 9 p.m. but not 9:00 p.m.

Spell out or use the full number for decades.

the thirties or the 1930s but not the '30s

In citing percentages or millions of dollars, use the figure followed by percent or million spelled out. Remember that percentage is the word to use when no figure is cited. Additionally, do not split the numeral from percent or million on a line or page.

4 percent
$4 million and 2 million volumes and 54 million people

Ashley owns 7 percent of the ranch; however, Victor owns a larger percentage.

Use of the abbreviation "No." is acceptable to denote rankings. Do not use "#."

The Mavericks were ranked No. 1 during the preseason.

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