unresricted use stock in MIRO

Hi experts,

I have query in MIRO, I want to know how i Can get exact value of unresricted use stock (LMENGE01).

actually my requirement is

LmMENGE01(unrestricted use stok) = LOSMENGE (Inspection lot quantity) - (LMENGE02 + LMENGE03 + LMENGE04 + LMENGE05 + LMENGE07 + LMENGE08). HOW IT COMES POSSIBLE PLEASE SEND ME ANY CODES IF POSSIBLE, BECAUSE SOME TIME ONLY ONE OR TWO FIELD WILL CHANGE. PLEASE REPLY ITS URGENT.