Evaluate the marginal cost of expanding Walmart’s supply chain network.

Cost Components	Fixed Costs ($)	Variable Costs per Unit ($)	Production Volume (units)
Supply Chain Network	3,500,000,000	5	500,000,000

Requirements:

Calculate the marginal cost per unit.

Analyze how changes in production volume affect the marginal cost.

Determine the break-even point for the supply chain network expansion.

Provide recommendations for cost management in the supply chain network.