Happy Feet produces sports socks. The company has fixed expenses of $90,000 and variable expenses of $0.90 per package. Each package sells for $1.80. Read the requirements. Requirement 1. Compute the contribution margin per package and the contribution margin ratio. Begin by identifying the formula to compute the contribution margin per package. Then compute the contribution margin per package. (Enter the amount to the nearest cent.) Contribution margin per unit 1. Compute the contribution margin per package and the contribution margin ratio. 2. Find the breakeven point in units and in dollars. 3. Find the number of packages Happy Feet needs to sell to earn a $18,000 operating income