| # Calculating actual weightings If you do a full update of the vendor ratings in the Update Vendor Rating (tdpur8850m000) session, the calculation of actual weightings is the first stage in the calculate/update vendor rating procedure. If you rescale the criteria weightings in the Normalize Criteria Weightings (tdpur8852m000) session, you can choose to: Fully update the weightings Recalculate the weighting for one subjective criterion After the rescale, the weightings represent a true percentage. So, weightings are not changed relative to other weightings. Full update Step 1. To sum the weightings The weightings for all the objective criteria and the level 0 subjective criteria are summed. Step 2. To recalculate objective and level zero subjective criteria The following recalculation takes place for the objective criteria and level zero subjective criteria:
    New weighting = (existing weighting/objective weightings and level zero subjective weightings) * 100
Step 3. To calculate subjective weightings with level one or higher The subjective weightings with level one or higher are calculated in the same way as the recalculation of one criterion, which is stated below. Recalculation for one subjective criterion When you recalculate the weightings for one criterion, the calculation is as follows:
    New weighting = (current weighting/sum of all weightings) * 100
If the selected subjective criterion has level one or higher, the following applies:
    Sum of all weightings = sum of all the weightings whose parent is the selected subjective criterion.
Example The existing objective weightings and subjective weightings are:
Objective criteria | Weighting
--- | ---
Delivery time | 60
Quality | 60
Order confirmation | 10
Level | Subjective criteria | Weighting
--- | --- | ---
0 | Customer service | 40
1 | Call handling | 14
1 | Product knowledge | 6
0 | Delivery service | 30
1 | Flexibility | 25
1 | Paperwork quality | 15
Full update Sum of all objective weightings and level 0 subjective weightings = 60 + 60 + 10 + 40 + 30 = 200. The new weightings are: Delivery time 60/200 * 100 = 30% Quality 60/200 * 100 = 30% Order confirmation 10/200 * 100 = 5% Customer service 40/200 * 100 = 20% Delivery service 30/200 * 100 = 15% The subjective weightings of level one or higher are recalculated for customer service as stated below. Recalculation for one criterion Normalization of, for example, the weightings for customer service: Total of weightings = 14 + 6 = 20. New call handling weighting = (14/20) * 100 = 70%. New product knowledge weighting = (6/20) * 100 = 30%. Related topics Calculating vendor ratings Overview of vendor rating |