The fowowing inforination desicrions a prodact expected to be produced and sold by Gairi comparm Seling price $80 per uhit Variable costs 532 per urit Total fixed costs $,630,000 Requifed: (a) Cakculate the contribution margin ratio. (b) Calculate the-break-even point in dollar sales.: c) What dollar amount of sales would be necessary to achieve a target incomk of $120,000