Actualy I want to create this form for custormers purchaces. One person will add lines to my list everyday custormers purchaces. My target to sum all products count which have same code. For example today I create 3 order for 3 different customer and products codes is A1,B1,C1. and item count A1=10,B1=20,C1=30 tomorrow i insert to new lines to mo sharepoint list and A1=100,B1=30 and of day manager must to see we need 110 A1 product, 50 B1 product an 30 C1 product. After that manager will give order to producer and request them correct count. 1 week later procuder send A1 and B1 products to us and we click the checkbox "order complate" and we will see only C1 product for complate. This will continue forever.