I may be wrong but I'm guessing its the same thing as Freight inwards/outwards; which is the cost (expense) of transporting inventory/goods. It would be listed as a current liability in a Balance Sheet and an expense (selling expense?) in the Income Statement.
But try to confirm this with a teacher or some one who knows what they're talking about ........I did Business Studies last year HSC. Hehe, now I'm doing bloody accounting as a compulsory unit at uni, so this is still familiar to me.
Good luck, I'm sure it's not as complicated as it appears
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