A firm has redesigned its production process so that it now takes 9 hours for a unit to be made. Using the old process,

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A firm has redesigned its production process so that it nowtakes 9 hours for a unit to be made. Using the old process, it took13 hours to make a unit. If the process makes two unit each hour onaverage and each unit is worth $1,500.
Using the old process, inventory = ? units;
After redesigning the process, inventory = ? units;
The reduction in work-in-process (inventory) value is$ .????