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Usage Glossary: A B C D E F G H I K L M N O P Q R S T U V W Y

percent/per cent/percentage

Use the symbol % to express percent inscientific and technical writing, except when writing numbers at the beginning of a sentence. Whenyou write out the word, use the form percent instead ofthe older form per cent.

Only 3% of the systems crashed during thetest period.

Three percent of the systems crashed duringthe test period.

In nontechnical writing, use the word percent rather thanthe symbol %.

The population has increased 1.42 percentduring the past ten years.

The word percentage refers to a general result or portion.

The percentage of system failures was belowthe limit set for the prototype.

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## percent/per cent/percentage ##
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