# How the trend and gap formulas are calculated ?

Hi,

We are using SSM 7.5 SP05 and trying to understand the trend and Gap formulas using the following formulas:

1. Expenses-Score : BI_EXPENSES_TARDEV = BI_EXPENSES_ACT%BI_EXPENSES_TAR

2. Expenses-Trend: BI_EXPENSES_TRD = MOVING2(BI_EXPENSES_ACT, 1, 2)

3.Expenses-Gap Performance : BI_EXPENSES_TRDDEV =

(BI_EXPENSES_TARDEV u2013MOVING2(BI_EXPENSES_TARDEV,1,2)) %ABS(MOVING2(BI_EXPENSES_TARDEV,1,2))

We understand the score is calculated by actual as percent of target.

If someone could explain how the trend and gap are calculated and the terminology, it would be very helpful.

Thanks

Amir

Edited by: amir herrmann on Apr 13, 2010 7:25 AM

##### Former Member replied

Hi Amir ,

Firstly , all these three measures are calculated variables. These are dependant on the actual and target values.

Trend is calculated as the moving average of the Actuals . By moving average we mean that the values of the previous 2 months are taken and averaged .

The Gap performance is calculated as the "deviation" of the Score. Hence we use the value of the Score to calculate the gap performance. The present Score minus the average score for the previous 2 months as a percent of the average score for the previous 2 months.

I will further research into these terms and provide a more detailed explanation.

Hope this helps

Vijay