Please help me figure this one out

The inspection department at Bramble Industries receives manufactured parts from its own production department and then meticulously checks every part before packaging it for sale. This month, the production department focused on automobile side mirrors. The inspection department began April with just 240 side mirrors in process. These beginning units were 70% of the way through the inspection process. During April, 3,840 more side mirrors were transferred-in from the production department. By month's end, 3,670 units had been fully inspected and packaged (packaging occurs when the units reach the 95% completion point in the inspection department). April's ending WIP Inventory units in the inspection department were 40% of the way through the inspection process. Which of the two methods more accurately reflects how the work in the inspection department is done? The inspection department at Bramble Industries receives manufactured parts from its own production department and then meticulously checks every part before packaging it for sale. This month, the production department focused on automobile side mirrors. The inspection department began April with just 240 side mirrors in process. These beginning units were 70% of the way through the inspection process. During April, 3,840 more side mirrors were transferred-in from the production department. By month's end, 3,670 units had been fully inspected and packaged (packaging occurs when the units reach the 95% completion point in the inspection department). April's ending WIP Inventory units in the inspection department were 40% of the way through the inspection process. Which of the two methods more accurately reflects how the work in the inspection department is done