What percentage of the average sales of the schools A, B, and C in 2014 is the average sales of schools A, C, and F in 2013? (Refer to the bar graph s...
Question
What percentage of the average sales of the schools A, B, and C in 2014 is the average sales of schools A, C, and F in 2013? (Refer to the bar graph showing sales of books from six schools during 2013 and 2014.)
