A project consists of six tasks. Task A is scheduled to begin at the start of Week 1 and finish at the end of Week 4. Task B is scheduled to begin at the start of Week 1 and finish at the end of Week 2. Task C is scheduled to begin at the start of Week 3 and end at the end of Week 4. Task D is scheduled to begin at the start of Week 1 and end at the end of Week 1. Task E is scheduled to begin at the start of Week 2 and end at the end of Week 4. Task F is scheduled to begin at the start of Week 4 and end at the end of Week 4. The budgeted cost for Task A is $10,000, for Task B is $2,000, for Task C is $3,000, for Task D is $1,000, for Task E is $6,000, and for Task F is $4,000. At the end of the third week Task A is 80% complete, Task B is 100% complete, Task C is 40% complete, Task D is 100% complete, Task E is 55% complete, and Task F has not started. What is the schedule performance index for the project at the end of the third week?