A company's relevant range of activity is 4,000 units to 8,000 units. When it produces and sells 6,000 units, its average costs per unit are as follows: Average Cost per Unit Direct materials $ 6.85 Direct labor $ 3.40 Variable manufacturing overhead $ 1.90 Fixed manufacturing overhead $ 3.20 Fixed selling expense $ 1.20 Fixed administrative expense $ 1.10 Sales commissions $ 1.70 Variable administrative expense $ 1.20 The incremental manufacturing cost that the company will incur if it increases production from 7,000 to 7,001 units is closest to: