## Calculating SPI

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Venkat
Contributor
Posts: 126
Joined: Sun Mar 23, 2014 6:18 pm

### Calculating SPI

Hi,

Could you please let me know, how to calculate the SPI for this diagram?

Thanks,
Venkat
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22-07-2014 10-56-25.png (100.97 KiB) Viewed 3007 times
namita
Super Member
Posts: 502
Joined: Wed Dec 11, 2013 10:25 am

### Re: Calculating SPI

More than calculations this diagram suggest whether you know what is SPI

SPI = EV/PV

SPI will be more if PV < EV

so in this graph, PV is less than EV in magnitude in 9 and 10th month if I assume horizontal axis as month and vertical axis as magnitute
Venkat
Contributor
Posts: 126
Joined: Sun Mar 23, 2014 6:18 pm

### Re: Calculating SPI

There is question in quampus on this. In the answer the SPI is calulated (see the figure attached). How to calculate the SPI from the diagram?
The concept of SPI is clear to me, that's why my answer to the question was correct but didn't get the calculation part.

Thanks,
Venkat
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22-07-2014 12-31-19.png (23 KiB) Viewed 3004 times
namita
Super Member
Posts: 502
Joined: Wed Dec 11, 2013 10:25 am

### Re: Calculating SPI

Look at attached. Its just taking approximate values from graph for EV and PV. You may not be 100% correct but you will get right answer. Let me know if you have any further query
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Venkat
Contributor
Posts: 126
Joined: Sun Mar 23, 2014 6:18 pm

### Re: Calculating SPI

Nice explanation, thanks a lot Namit