If a cell is IN can you change a other value in a other cell into - or +
For example
when the warehiuse scan the goods in , and action is IN , and QTY 20 the qty 20 doesnt changes .
But when action is OUT the number he puts in the field is 6 but due to the action is OUT the number shoudl changes to -6
This make that i can create a warehouse overvieuw