I need help with the areas starting in red. I know they are all wrong, but am unsure how to come up with the correct soultion

Kenzi Kayaking, a manufacturer of kayaks, began operations this year. During this first year, the company produced 1,075 kayaks and sold 825. at a price of $1,075 each. At this first year-end, the company reported the following income statement information using absorption costing.

Sales (825 $1,075)	$	886,875
Cost of goods sold (825 $400)		330,000
Gross margin		556,875
Selling and administrative expenses		240,000
Net income	$	316,875

Additional Information

a.	Production cost per kayak totals $400, which consists of $300 in variable production cost and $100 in fixed production costthe latter amount is based on $107,500 of fixed production costs allocated to the 1,075 kayaks produced.
b.	The $240,000 in selling and administrative expense consists of $95,000 that is variable and $145,000 that is fixed.

Required

1.	Prepare an income statement for the current year under variable costing.

KENZI KAYAKING
Variable Costing Income Statement
Sales		$886,875
Less: Variable costs
Variable production costs	$247,500
Variable selling and administrative expenses	95,000
Total variable costs		342,500
Contribution margin		544,375
Less: Fixed expenses
Variable selling and administrative expenses	$145,000
Fixed overhead costs	107,500
Total fixed expenses		252,500
Net income (loss)		$291,875
Net income under absorption costing is lower than net income under variable costing by:		825,000
Number of units added to(subtracted from) inventory		107,500
Fixed overhead cost per unit		$25,000
Fixed costs added to inventory		$2,687,500,000