Describe Ratio analyses

In this attachment I have included the reading material and the reference of this book. Please this is a discussion for this week. very detailed and referenced corrected APA format 200 to 250 words. This is a discussion when all of us has to respond to each other. and I like my answer to be full on point and detailed, ease review and I needed more information I will try to get it to you. I think this is the hardiest way to relate to the tutors. I do understand that you will need all necessary information to complete the question