Ida Sidha Karya Company is a family-owned company located in the village of Gianyar on the island of Bali in Indonesia. The company produces a handcrafted Balinese musical instrument called a gamelan that is similar to a xylophone. The gamelans are sold for $990. Selected data for the company’s operations last year follow:

Units in beginning inventory 0
Units produced 250
Units sold 230
Units in ending inventory 20
Variable costs per unit:
Direct materials $145
Direct labor $365
Variable manufacturing overhead $40
Variable selling and administrative $ 25
Fixed costs:
Fixed manufacturing overhead $65,000
Fixed selling and administrative $ 29,000
The absorption costing income statement prepared by the company’s accountant for last year appears below:

Sales $ 227,700
Cost of goods sold 186,300
Gross margin 41,400
Selling and administrative expense 34,750
Net operating income $ 6,650

1. Under absorption costing, how much fixed manufacturing overhead cost is included in the company's inventory at the end of last year?
2. Prepare an income statement for last year using variable costing. What is the amount of the difference in net operating income between the two costing methods?