A project is in during performing phase. From the project plan, we know the project has a total budgeted cost of 80176 dollars and a completion time of 22 weeks. At the end of week 10, we meet to evaluate the performance of the project. The progress report shows that the project so far has consumed a total of 37726 dollars. Furthermore, the cost performance index is 0.8 and the schedule performance index is 1.04. What is the value of the cost variance at the end of week 10? NOTE: Do not use any comma. Use at least 4 decimals. At the end of week 10, the cost variance is dollars. A project has 79 activites but only 6 activites are discussed here. Activity D, duration = 21 days, IP = unknown Activity E, duration = 18 days, IP = unknown Activity F, duration = 23 days, IP = unknown Activity M, duration = 27 days, IP = D, E Activity N, duration = 31 days, IP = E Activity P, duration = 38 days, IP = E, F If you know that LF of M = 69, LF of N = 75, and, LF of P = 78, then: LS of D = LS of E = LS of F =