Bartov Corporation agreed to build a warehouse for $2,500,000. Expected (and actual) costs for the warehouse follow: 2019, $400,000; 2020, $1,000,000; and 2021, $500,000. The company completed the warehouse in 2021. Compute revenues, expenses, and income for each year 2019 through 2021 assuming that Bartov's performance obligation for the warehouse is fulfilled over time and that the costs incurred provide a close approximation of the value conveyed to the customer.