What is a key factor that the Final Rate Proposal (FRP) must include?

The Final Rate Proposal (FRP) is a critical part of the contracting process, as it establishes the basis for determining the final rate for a contract. A key factor that the FRP must include is final actual costs data. This information is essential because it reflects the true costs incurred by the contractor in delivering the services or products stipulated in the contract. By providing actual costs, the FRP allows for transparency regarding how the proposed rates were calculated and ensures that the prices reflect the real expenses associated with the contract.

Incorporating final actual costs aids both the contractor and the contracting agency in assessing the reasonableness of the proposed rates. This can also facilitate negotiations and provide a basis for future contracts or adjustments, enhancing overall fiscal responsibility and accountability in the contract management process.

The other options, while they may be relevant in different contexts, do not fulfill the primary requirement of the FRP in establishing final rates based on real expenditures. Projected future costs, revenue estimates, and a contractor's business plan can influence overall project management and planning but do not provide the concrete accounting basis needed for the FRP.