Tournament Times, Inc. produces and sells fine quality badminton racket sets. The company expects the following revenues and costs in 2019 for its Grand Prix racket sets: Revenues (400 sets sold @ $300 per set) $120,000 Variable costs 88,000 Fixed costs 24,000 How many sets of these rackets must be sold to earn a target operating income of $45,000? 300 80 575 875