# Difference between percentage points and percent

Although I am aware that percentage points should be used to describe arithmetical differences between two percent figures, I could not find a satisfying literature reference. Can anyone recommend an encyclopedia with a definition of percentage points (besides wikipedia, I know the entry)?

• This is not a site where we simply provide mathematical definitions. – Michael R. Chernick Apr 1 '17 at 17:47
• @MichaelChernick, why not? We have a tag for [definition] w/ 193 threads, & we have a tag for [references] w/ 1293. This question seems potentially on topic to me. – gung - Reinstate Monica Apr 1 '17 at 23:42
• I am just following what Bill Huber commented on a similar thread. – Michael R. Chernick Apr 1 '17 at 23:46