What percentage of sell orders on 04/04/2020 were for the state of New York?
sales order on 04/04/2020 refers to OrderDate = '4/4/20'; 'New York' is  the City Name; percentage = Divide (Sum(OrderNumber where City Name = 'New York'), Count (OrderNumber)) * 100
SELECT CAST(SUM(CASE WHEN T2.State = 'New York' THEN 1 ELSE 0 END) AS REAL) * 100 / COUNT(T1.OrderNumber) FROM `Sales Orders` AS T1 INNER JOIN `Store Locations` AS T2 ON T2.StoreID = T1._StoreID WHERE T1.OrderDate = '4/4/20'