PERCENT (%)

• note that percent is a single word. Do not use the abbreviation pet. Except in tables. Instead, use % or percent.
E.g. 50% or fifty percent not 50 pet.

• use the symbol % after a numeral. Do not space between the numeral and the symbol.
E.g. 13% monos, 1% bands
She has had a 10% increase in weight since her last visit.
MCHC 34%
10% solution
• when the number is written out, as at the beginning of a sentence, write out percent.
E.g. Fifty percent of the patients were given a placebo.

RANGE
• in a range of values, repeat % (or percent) with each quantity.
E.g. Values ranged from 13% to 13% NOT Values ranged from 13 to 18%.
Fifty percent to eighty percent… NOT Fifty to eighty percent.

SUBJECT-VERB AGREEMENT
• Percent of takes a singular verb when the word following of is singular, a plural verb when the word following of is plural.

E.g. Ninety percent of the body was burned.
Forty percent of the patients were in the control group.

Less than 1 percent
• When the amount is less then 1 percent, place a zero before the decimal. 0.5% not .5%