18.A construction company was hired on a construction project to build a building for $1,800,000. The project was begun in 2015 and completed in 2016. Cost and other data are presented below:

	2015	2016
Costs incurred during the year	$450,000	$1,100,000
Estimated costs to complete	1,050,000	0
Billing during the year	400,000	1,400,000
Cash collections during the year	300,000	1,500,000

Assume that A recognizes revenue on this contract over time according to percentage of completion.

Required:

Prepare all journal entries to record costs, billings, collections, and profit recognition.