I am calculating the driven kilometers of trucks with the calculation Max (Mileage) - Min (Mileage) and this works fine. Every truck is linked to a department. Now i want to make a chart with department as dimension and summed or average driven kilometers of all trucks in a certain department.
The formulas i tried did not work, because the formula takes from all trucks the truck with the highest mileage and the truck with the lowest mileage.
So the formula needs to calculate the driven kilometers for every truck separately and then sum it up per department.