Change in work-in-progress impacts cost of production calculation Steps:

• Identify opening WIP: $200.
• Identify closing WIP: $3,400.
• Compute change: $3,400 -$200 = $3,200 increase in WIP.
• Apply formula: Total manufacturing costs incurred = Cost of goods manufactured + (Closing WIP - Opening WIP); thus, $3,200 increase raises total costs by$3,200, but options do not match.

Not enough information: Options suggest a $800 or$1,600 effect, but data yields $3,200; ambiguous definition of "cost of production" (e.g., COGM vs. total incurred costs).

Final answer: Not enough information.