2 The Zucchero mail-order clothing company in Milan receives order forms, types in the customer details, checks the information provided from the customers and that the products are in stock, confirms payment and processes the order. During an average eight-hour day, 150 orders are processed. Generally, 225 orders are waiting to be processed or ‘in progress’. It takes 20 minutes for all activities required to process an order. What is the throughput efficiency of the process?