Problem 18-11 On July 1, 2017, Sage Construction Company Inc. contracted to build an office building for Gumbel Corp. for a total contract price of $1,900,000. On July 1, Sage estimated that it would take between 2 and 3 years to complete the building. On December 31, 2019, the building was deemed substantially completed. Following are accumulated contract costs incurred, estimated costs to complete the contract, and accumulated billings to Gumbel for 2017, 2018, and 2019. At 12/31/17 At 12/31/18 At 12/31/19 Contract costs incurred to date $315,000 $1,140,000 $2,096,200 Estimated costs to complete the contract 1,185,000 860,000 0 Billings to Gumbel 290,000 1,110,000 1,840,000 (a) Using the percentage-of-completion method, prepare schedules to compute the profit or loss to be recognized as a result of this contract for the years ended December 31, 2017, 2018, and 2019. (Ignore income taxes.) (b) Using the completed-contract method, prepare schedules to compute the profit or loss to be recognized as a result of this contract for the years ended December 31, 2017, 2018, and 2019. (Ignore income taxes.)