Concord Corporation is constructing a building. Construction began in 2020 and the building was completed 12/31/20. Concord made payments to the construction company of $3018000 on 7/1, $6576000 on 9/1, and $5870000 on 12/31. Weighted-average accumulated expenditures were $3153000. $3701000. $9594000. $15464000.