Umar Ltd is considering selling Calendars and Printed Arts which would result in the following estimates: Expected sales volume in units Selling price per unit Total variable costs per unit Annual (combined) fixed costs Calendars 12,400 $14 $9 b. The contribution margin (per unit) for printed arts is $ Printed Arts 8,240 $25 $11 Calculate the following. Please do not show any workings. Unless otherwise stated, please show your answer in 2 decimal places (i.e 6.50). a. The contribution margin (per unit) for calendars is $ ii. The sales mix proportion for Printed Arts is 12.92 $134,000 8.738 4 c. Calculate the sales mix proportion. Please include your answer as a ratio to 2 decimal place (not as a percentage). As an example 0.62 instead of 62.00%. i. The sales mix proportion for Calendars is