GPT 5.4 on 31746

You are solving a spreadsheet benchmark task in a real workbook. Objective: Produce the correct final workbook state for the expected answer region. What matters: - Only the values in the expected answer region will be graded. - The workbook is the answer. Instructions: 1. Read the workbook and inspect the relevant data region first. 2. Infer the required result for the provided workbook instance. 3. Write the final value(s) directly into the expected answer region. 4. Do not rely on prose, formulas in your chat response, pseudocode, or VBA as the answer unless the benchmark explicitly requires those to be written into cells. 5. If the natural-language task asks for a general method, formula, or macro, convert that into the concrete result needed for this workbook instance. 6. Keep your final text response short and only summarize the workbook cells you changed. Relevant data region(s): Expected answer region(s): Q3:Q38 Expected answer sheet(s): Task: Calculate the total cost savings for a contract given multiple cost savings that could occur in different months, considering that the contract duration is always 81 months. For example, if a saving of £4165 occurs in month 21, the calculation would be 81 months minus 20 months times £4165, because the saving is included within the given month. Additionally, if another saving occurs in month 70 of £500, the calculation would be 81 months minus 69 months times £500, and then those savings would need to be added together. Update the total cost savings in column Q with the grand total in Q38 and do not bold the numbers.