Evaluate the marginal cost of expanding Procter & Gamble's personal care products line.

Cost Components	Fixed Costs ($)	Variable Costs per Unit ($)	Production Volume (units)
Personal Care Products	3,000,000,000	0.50	2,000,000,000

Requirements:

Calculate the marginal cost per unit.

Determine the break-even point for the personal care products line expansion.

Analyze how changes in production volume affect the marginal cost.

Provide recommendations for cost management in personal care products production.