A project is contracted as a Cost-Plus-Incentive-Fee (CPIF) type of contract. The project is negotiated such that if the final costs are less than expected costs, the sharing formula for cost savings is 80:20. The targeted cost is US$ 500,000 with a 10% fee. If the project comes in at US$ 450,000, what would be the cost of the total contract?
A. US$ 495,000
B. US$ 510,000
C. US$ 505,000
D. US$ 550,000