Conduct a detailed budgeting analysis for Uber's ride-sharing service expansion.

Cost Components	Estimated Costs ($)
Driver Incentives	300,000,000
Marketing	200,000,000
Technology Upgrades	150,000,000

Requirements:

Estimate costs for driver incentives, marketing, and technology upgrades.

Develop a comprehensive budget and timeline for the expansion.

Analyze potential cost overruns and recommend risk mitigation strategies.

Prepare a variance analysis report comparing budgeted and actual costs.