Coquel Company Has a Non-Cancellable Contract to Construct a Bridge

Coquel Company has a non-cancellable contract to construct a bridge for an estimated cost of $ 1,950,000. The contract is to start in July 2020, and the bridge is to be completed in September 2022. The following data pertain to the construction period. Assume that progress billings are non-refundable.
$\begin{array}{c}\begin{array}{lll}\\\text {Costs to date}\\\text {Estimated costs to complete}\\\text {Progress billings during theyear}\\\text {Cash collected during the year}\end{array}\begin{array}{r}2020\\\hline\$ 360,000 \\1,260,000 \\305,00\\280.000\end{array}\begin{array}{r}2021\\\hline \$ 900,000 \\380,000\\765,000\\760.000\end{array}\begin{array}{r}2022\\\hline\$ 390,000\\-\\ 1,200,000 \\ 2,000,000 \end{array}\end{array}$
Instructions
a) Assuming that Coquel Company uses the completed-contract method prepare the appropriate journal entries.
b) Assuming that Coquel Company uses the zero-profit method prepare the appropriate journal entries to recognize revenue over the life of the contract.