Plain Fan Unit selling price $20.00 Variable costs per unit $12.00 $24.50 Maxie Pty Ltd makes and sells two types of shoes, Plain and Fancy. Product data is as above: Sixty per cent of the sales in units are Plain and annual fixed expenses are $45 000 and the sales mix remains constant. How many units of Fancy must Maxie Pty Ltd sell to earn a target profit of $31 500