Answer:
Incremental income as scrap=$66,500
Incremental income when re-worked= $81,700
Explanation:
Unit contribution from selling as scrap is the equal to the scrap value = 3.50
Unit contribution when reworked and sold as scrap =Selling price - cost of re-work= $8.90-4.60= $4.3
Incremental income as scrap = $3.50×19,000= $66,500
Incremental income when re-worked= $4.3 × 19,000 = $81,700
Incremental income as scrap=$66,500
Incremental income when re-worked= $81,700