well frm financial management do prepare chapter which include ratio analysis,detailed information about ratios tht which ratio is used for wat and wat is shows etc, i thnk its chap 6 i dont remember aap check ker layna, and b.com ki books hmmmmmm advance accounting by M.A Ghani also by Sohail Afzal, Cost accounting just basic info,wikipedia peh search kero ratios ka to bht acha data mil jata hay....