Rules of Buffer rate : 
1) If IKU Tersedia Sekarang is 0 and Perlu Pengiriman = Y, maka Buffer dinaikin dari 5% ke 10%
2) If IKU Tersedia Sekarang is not 0, tapi Fulfilment IKU masa pengawasan >= 7 , maka Buffer dinaikin ke 7.5%

Rules of Seasonality factor : 
1) Payday Seasonality
   If Pengiriman Tgl 1-7 --> 7.5%
   If Pengiriman Tgl 8-14  --> 5.0%
   If Pengirman Tgl 15-21 --> 2.5%
   If Pengiriman Tgl 22-31 -->  10%

2) Festives Seasonality (ini tidak di factor in)
3) Promo Seasonality (ini tidak di factor in)


Rules ini belum memperhatikan Short Shelves Life Product