DP Local Key Figure Discrepancy between Aggregated level and lowest level

Question

Dear,
Here is my issue.
Forecast (key figure)
Life Cycle Factor (key figure)
Final Forecast (Local Key figure)
Final forecast = Forecast * (1- LCF (%) )
Example :
Product 1 = 100
Product 2 = 200
Product 3 = 300
TOTAL FORECAST = 600
If I assign a life cyle factor to Product 1 = 60
Total LCF appears  = 20 (60 + 0 + 0) => OK
Final Forecast Product 1 = 40        => OK
Final Forecast Product 2 = 200      => OK
Final Forecast Product 3 = 300      => OK  
Total Final Forecast =  480  (600 * (1-20%)        => NOK 
I have a very strange situation because  at the product level, the formula is OK   => Final Forecast = Forecast * (1 - LCF(%) )
BUT Total Final Forecast should be the sum of the each product Final forecast = 40 + 200 +300 = 540.
Can you help me to understand what I have to correct for  this aggregation ?
Thanks a lot for your help
PE

Answer 1

Hi Arnaud,
My macro is running "interactively" because it is placed into the Default basket of my planning book.
(macro executed  for each save / change)
I agree, calculation is done at each level.
Here is the parameters of the macro... should I change something ?
Thanks for your help
Pierre