The schedule performance index shows how well the project is performing on its schedule goals. The SPI can be found by dividing the earned value by the planned value. In this instance, it is $2,025,000 divided by $2,250,000 for .90. The closer to 1, the better the performance. Schedule performance index (SPI) is the measure of schedule efficiency on a project. It is used in trend analysis to predict future performance. SPI is the ratio of earned value to planned value. The SPI is calculated based on the following formula: SPI = Earned Value (EV) / Planned Value (PV) If the SPI value is greater than 1, it indicates better than expected performance, whereas if the value is less than 1, it shows poor performance. The SPI value of 1 indicates that the project is right on target.

Answer option B is incorrect. 0.98 is the cost performance index.

Answer option A is incorrect. 1.02 is the to-complete performance index.

Answer option D is incorrect. -$108,120 is the variance at completion based on current performance.