Grammarly recently conducted a study to determine what the correlation was between the number of grammatical errors a writer had and the amount of money they earned. The infographic above is the result of this study.
Grammarly collected their data by proofreading 400+ freelancer profiles from all eight categories of the Elance platform (a website for freelancers to advertise themselves) for grammar, spelling, and punctuation errors. To adjust for quality of work, they only selected freelancers with an average rating of four stars or above. From there they were able to determine the relationship between grammatical errors present and money earned. They hope that this data will start up some conversation about the importance of good writing, as well as getting the word out about what Grammarly can do to help.
For those of you unfamiliar with Grammarly, it is a writing-enhancement platform that launched in 2009. It offers such services as proofreading (it can check for errors in more than 250 grammar rules) as well as checking for plagiarism.