Samsung Electronics manufactured and sold smartphones in November 2024, incurring the following costs:

1. Direct materials: $300,000
2. Direct labor: $140,000
3. Manufacturing overheads: $110,000
4. Selling expenses: $80,000
5. Administrative expenses: $60,000
6. Units produced and sold: 18,000 units
7. Sales revenue: $900,000

Requirements:

1. Calculate the total cost of production.
2. Compute the cost per unit.
3. Determine the gross profit per unit.
4. Calculate the total gross profit and net profit.