a)	Compute the revenue, expense, and income for both 2019 and 2020, and for both years combined, under the companys cost-to-cost revenue recognition method.
	Revenue to be recognized :				million
	($ millions)		Cost-to-Cost Reveneu Method
	Year	Costs incurred	Percent of total expected costs	Revenue recognized (percentage of costs incurred total contract amount)		Income (revenue - costs incurred)
	2019
	2020
	Total
b)	Discuss whether or not we believe the cost-to-cost method provides a good measure of the companys performance under the contract