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For example, A-B-C-D-E follows invitation relationship and the Commission ration ratio is shown in the picture.
Case 1: E is not a contract broker.
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C will enjoy rebate = 10 * 70% - 6= 1USD B will enjoy rebate = 10 * 80% - 6 - 1= 1 USD
You may refer to the diagram here for the other cases.
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