Quible Limited Quible Limited manufactures two products: Quarks and Charms, Fixed costs equal $375,063. Each Quarks sells for $2.20 and has variable costs of $0.88; each charm sells for $3.00 and has variable costs of $2.25. Required: 1. What is the contribution margin per unit and the contribution margin ratio for Quarks and Charms? 2. If Quible sell 280,000 quarks and 420,000 charms, what is the operating income? 3. Assuming the sales mix given in requirement 2, how many quarks and charms must be sold for Quible to break even? 4. Assume Quible has the opportunity to rearrange its plant to produce only charms, if this is done, fixed cost will decrease by $70,000 and 700,000 charms can be produced and sold. Is this a good idea? Explain