A project consists of four tasks. Task A is scheduled to begin at the start of week one and finish at the end of week four. Task B is scheduled to begin at the start of week one and finish at the end of week two. Task C is scheduled to begin at the start of week two and finish at the end of week four. Task D is scheduled to begin at the start of week three and finish at the end of week four. The budgeted cost for Task A is $20,000; for Task B is $30,000; for Task C is $24,000, and for Task D is $15,000. At the end of the third week Task A is 85% complete, Task B is complete, Task C is 75% complete, and Task D is 60% complete. The actual cost of the work performed at the end of the third week is $70,000. What is the cost performance index for the project at the end of the third week? What does this mean?