Evaluate the marginal cost of expanding Google’s search engine infrastructure.

Cost Components	Fixed Costs ($)	Variable Costs per Unit ($)	Production Volume (units)
Search Engine Infrastructure	3,000,000,000	2,000	500,000,000

Requirements:

Calculate the marginal cost per unit.

Determine the break-even point for the search engine infrastructure expansion.

Analyze how changes in production volume affect the marginal cost.

Provide recommendations for cost management in search engine infrastructure.