A project consists of three tasks. Task A is scheduled to begin at the start of week 1 and finish at the end of week 3 . Task B is scheduled to begin at the start of week 1 and finish at the end of week 2 and end at the end of week 3 . The budgeted task cost for task A is $25,000, for B is $18,000 and for Task C is $16,000. At the end of the second week, Task A is 50% complete, Task B is 80% complete, and task C is 70% complete. What is the SPI for the project at the end of the second week? Also indicate whether it is ahead or behind schedule. Answer should be: 0.89