Gross refers to the whole of something, while net refers to a part of a whole following some sort of deduction.

When allocating royalties, if you set an allocation as Gross, the artist/company will receive the set percentage of the total royalty, and any allocations set as Net will receive the allocated percentage of the remaining royalty after the gross allocations are deducted. By default, all allocations are set as net and the percentages of all net allocations must add up to 100%.
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