Format:

per cent 


0.1% 

Rules:

  • Use the per cent symbol (%) in research reports, scientific and statistical copy, lists, and copy that includes numerous percentage figures. In all other cases, spell out the word per cent.
    • There is no space between the symbol and the number.
    • Use one format throughout the document.
    • When using the symbol with numbers less than one, put a zero before the decimal point.