You were more accurate than 10% of (software company) users.
I use a software tool that grades me at the end of the week. One of the categories is called Mastery. I am always confused at this because I am never sure if I am doing well or not based on how they structure this sentence.
My score this week was 10% with 309 alerts. This was out of 5,736 words checked. Surely the software company does not mean to infer that I am in the top 10% of all of the Internationally sold software users! I have had scores of 17% with higher alerts and lower number of words checked. I am baffled because the category's name is Mastery. One would want a higher percentage. That is how I perceive it at least. This is a teaching software program for the betterment of English grammar and punctuation.
Is there a better way this information could be conveyed? What am I missing?