Lily Construction Company was the low bidder on a construction project to build indoor batting cages for $$1,800,000.$ The project was begun in $2017$ and completed in $2018.$ Cost and other data are presented below:

Costs incurred during the year

Estimated costs to complete

Billings during the year

Cash collections during the year

$\backslash$table$[[2017,2018],[$$$450,000,$$$1,100,000$