At Proofed, we always put 100% into our work. But wait, is that right? Not the level of effort (we\u2019re confident on that one).\n\n\n[caption id="attachment_4010" align="aligncenter" width="387"] We've even underlined it for emphasis.(Image: geralt\/Pixabay)[\/caption]\nThe real question is whether we\u2019ve expressed the percentage correctly. There are so many ways of writing the darn things, after all! Herein, then, we\u2019ll look at your options for handling percentages in different types of writing.\n\nWords or Numbers?\nWhen writing percentages, the same rules apply as for writing numbers of any kind. Generally, this means that you should write numbers up to ten as words and anything larger as numerals.\nThis also affects how you write the \u2018percentage\u2019 bit of percentages. For example, when a percentage is represented with a numeral, it should be accompanied by the \u2018%\u2019 sign:\nStudies show that 48% of people use numbers incorrectly.\nBut when following a number written out in full, you should use words:\nTen percent of respondents spelled their own names wrong.\nThis is particularly common in formal writing or when using a percentage at the beginning of a sentence. However, this may depend on whether you\u2019re using a particular style guide (e.g. in technical and scientific writing, numerals and the \u2018%\u2019 sign are used in most cases).\n\nPercent or Per Cent?\nWe know now that percentages are sometimes expressed in words, but we still have another big question: should it be one word or two?\nThe answer? It doesn\u2019t really matter.\nBoth \u2018percent\u2019 and \u2018per cent\u2019 are acceptable. The one-word version is more common these days, especially in America, but both are variations on the Latin per centum, which means \u2018by the hundred\u2019.\n\n\n[caption id="attachment_4007" align="aligncenter" width="250"] It's the same Latin 'cent' you get in 'century' or 'centurion'.(Image: Luc Viatour \/ https:\/\/Lucnix.be)[\/caption]\nIf your university or employer has a style guide, check whether they prefer using \u2018percent\u2019 or \u2018per cent\u2019. Most of the time, though, either is fine as long as you\u2019re consistent.\n\nWhen to Use \u2018Percentage\u2019\nFinally, we have the word \u2018percentage\u2019. This term has the same root as \u2018percent\u2019, but it\u2019s used in a different way. The key is that \u2018percentage\u2019 is not typically used with a specific number.\nIn practice, this means that we use \u2018percent\u2019 (or the \u2018%\u2019 symbol) when we\u2019re discussing a particular percentage. If we\u2019re talking about a general amount, however, we can use \u2018percentage\u2019 instead:\nResearch indicates that 98 percent of bees have knees.\nWe need to study what percentage of ants have elbows.\nThis is because \u2018percentage\u2019 is only ever a noun, while \u2018percent\u2019 typically modifies another word.