See the below table and excel figures that I calculated. Please instruct what I'm doing wrong because the numbers I'm inputting based on the info below and the answers I received to the right, the info is apparently not correct. Specific instructions for the problem are below the excel table. Thank You.

6 Answer is complete but not entirely correct. ' 1. Required target cost $ 255.87 9 2. New target cost $ 280.8? 9