Sage 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 $$604,000$ and will take $3$ years to construct. The complex will be billed to the purchasing company at $$902,000.$ The following data pertain to the construction period.

$\backslash$table$[[,2020,2021,2022],[$Costs to date,$$253,680,$$$489,240,$$$613,000$