Under the percentage-of-completion method of accounting for a long-term construction contract, which of the following represents the most appropriate measure of progress toward completion

Group of answer choices

comparing costs incurred to date with total costs to complete the contract.

comparing the time elapsed on a project to the total time expected to completion

comparing amouns already billed on the projected to total expected billings

comparing the number of floors of a building already completed to the total number of floors to be completed