Dear K.Ple,
As note below, Buyer request information did not included on order That's why buyer request quite high amount.
Monthly sales 3.86 MB
Current stock 4.75 MB
On order 1.41 MB
Buyer request 3.40 MB
SCM approve 1.73 MB
Finally Stock + on order will be 7.90 MB to support monthly sales 3.86 MB. It's should be enough.