The following data relates to the GuideMyTrip Co.. The company produces and sells a travel guidebook \begin{tabular}{l|l|l|} \hline 18 & Required: Part 1: Calculate the following: \\ \hline 19 & a. Contribution margin per guidebook \\ \hline 20 & b. Contribution margin ratio & \\ \hline 21 & c. Breakeven point in units & \\ \hline \end{tabular} 21 c. Breakeven point in units 22 Part 2: Assume the company sells the following amount of guidebooks next 23 month: 25 Calculate the following: 26 a. Total contribution margin b. Total operating income c. Margin of safety in units d Degree of operating leverage