A method for measuring project performance, earned value measures the cost of work performed up to any specified status date in one or more projects. Earned value uses your original cost estimates saved with a baseline and your actual work to date to show whether the actual costs incurred are on budget. BCWS, ACWP, and BCWP are the primary values used in the calculation of earned value. For more information, see Applying earned value analysis to your project on Microsoft® Office Online.