Hello,
the take rate is used for calculating accruals.
http://help.sap.com/erp2005_ehp_05/helpdata/en/46/e368f13ca50a97e10000000a421392/content.htmhttp://help.sap.com/erp2005_ehp_05/helpdata/en/46/e368f13ca50a97e10000000a421392/content.htm
best rergards,
Johannes