Bridgeport Construction Company has entered into a contract beginning January $1,2020,$ to build a parking complex It has been estimated that the complex will cost $$596,000$ and will take $3$ years to construct. The complex will be billed to the purchasing company at $$902,000.$ The following data pertain to the construction period.

$\backslash$table$[[,2020,2021,2022],[$Costs to date,$$256,280,$$$429\mathrm{.}120,$$$606,000$