Insufficient data to determine accumulated depreciation Steps:

• Identify key data: asset cost $14,200, sales proceeds$6,800.
• Recall formula: net book value (NBV) = cost - accumulated depreciation.
• Note gain/loss on disposal = proceeds - NBV; requires gain/loss info to solve for depreciation.
• Conclude: without gain/loss or assumption of zero profit/loss, depreciation cannot be calculated.

Not enough information.

Final answer: Not enough information.