Final answer:
The reporting senior's title is contained in a block designated for administrative data in a performance report, usually towards the end of the report.
Step-by-step explanation:
In a performance report, the block that contains the reporting senior's title is often designated for administrative data, which typically includes information such as the individual's name, rank, and title. The specific location and designation of this block may vary depending on the format of the report or the organization's standards. However, it is usually found towards the end of the report in either the concluding section or alongside the reporting senior's signature. This block is critical as it helps to identify the authority of the person who prepared the report and their capacity within the organization.