While no specific rules can be given that will govern in all cases as to what should be expressed in figures and what should be spelled out, the following suggestions will be helpful.
1. In expressing sums of money amounting to one dollar or more, use the sign and figures as $123.53 and $25.
Note — In expressing even amounts of money, such as $25, it is better to omit the decimal point and the two ciphers, except in contracts, legal papers and tables.
2. Isolated sums of less than one dollar may be written in figures or spelled out as, 50c, 50 cents or fifty cents.
Note — Do not use the sign $ for sums less than one dollar. Thus, It costs 25c, not $0.25 or $.25.
3. Express dates, dimensions and percentages in figures as January 24, 1916 and 12 x 24 inches and 3% bonds.
4. When numbers require three or more words, use figures as 103, 250, 1530, 1,540 and 310.
5. When several numbers are mentioned in a short space, some of which should be expressed in figures, use figures for all….as, "We drove 30 miles on Monday, 75 on Tuesday, 100 on Wednesday and 126 on Thursday."
6. When the numbers to be expressed are not frequent, spell out those that may be expressed in one or two words as, five, twenty, forty-two, two hundred, twenty thousand, ten millions.
7. As a rule, spell out ages, hours of the day, distances, weights and measures, when they can be expressed in one or two words as, "All children less than eight years of age who live two miles from school are dismissed at three o'clock."
Note — Use figures in expressing clock time in connection with a. m. and p. m. as "I will call at 10 a. m. or 5 p. m." Observe that
a. m. and p. m. are generally written in small letters, though some prefer capitals and that o'clock is written with a small o.
8. Spell out numbers at the beginning of a sentence or immediately following a colon as….Five dollars is too much for such an article…. not "$5 is too much," etc.
Follow these suggestions while using figures in your business letters.
Use of Figures in Business Letters :
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