Apple Inc. and Samsung Electronics are two leading competitors in the global smartphone market. Both companies invest heavily in research and development (R&D) to innovate and improve their product offerings.

Scenario: Apple Inc. is developing the latest version of its iPhone, while Samsung Electronics is working on its flagship Galaxy smartphone. Both companies incur significant R&D expenses, manufacturing costs, and marketing expenses.

• Apple's iPhone Development Costs:
  • Research and Development Expenses: $500 million
  • Manufacturing Setup Costs: $300 million
  • Marketing Expenses: $200 million
  • Total Units Produced: 1 million
• Samsung's Galaxy Development Costs:
  • Research and Development Expenses: $450 million
  • Manufacturing Setup Costs: $350 million
  • Marketing Expenses: $180 million
  • Total Units Produced: 1.2 million

Requirements:

1. Calculate the total cost per unit for Apple's iPhone.
2. Determine the total cost per unit for Samsung's Galaxy smartphone.
3. Analyze the cost structure and investment priorities of Apple Inc. and Samsung Electronics in their smartphone development projects.