Answer:
a. 2017 2018 2019
Expenses incurred for the year A 36 million 81 million 63 million
Estimated total cost B 180 million 180 million 180 million
% Completion (A/B) C 20% 45% 35%
Revenue recognized for the D 44 million 99 million 77 million
period (220 million * C)
Gross profit (D-A) $8 million $18 million $14 million
b. Yes, the cost-to-cost method provides a good measure of this construction company's performance under the contract.