InfoPath Dev

 Sorry, I cant see the image so this is the field structure:   -myFields     +queryFields     -dataFields         +d:ASL_Finished_Good                +ASL_Raw_Material                        ...

 Hi all, I am trying to understand how count(preceding-sibling) works. Everything I did just throw me an error and the formula wont work at all. Could someone more experienced help me to build it and maybe I'll understand how it works. So, this is my structure:   All of this is coming from a SQL Database apart from the last 4 ...