Enter the percent or currency value you want to execute. If you indicate 50% of basket, the quantity of each security is halved and this amount is transmitted. If you enter $1000.00 USD, the amount is divided by the number of orders in the basket, and the quotient is used to calculate quantity for each order in the basket.  You can elect to distribute this total quantity amongst orders by weight instead of by even distribution by entering a value in the % field of the order line.