Is someone able to explain to me why there is a cost difference in the roll up of the material costs for this part? The Accumulated Cost for the Estimated Material cost of the component is 0.20374 for 2921-88-2. The QPA for 2921-88-2 for the parent part 2921-88-2_HC-ML is 10. From this you would expect the Accumulated Estimated Material Cost for 2921-88-2_HC-ML to be 2.03740. However, it shows as 2.03742. Why?
