Which column of the table has an error if: The mean monthly overhead at ABC Corporation is distributed according to the floor space of each department. The overhead was $120,000. Department Floor Space Ratio of Floor Space $ Overhead Charge A 15,000 15/80 $22,500 B 20,000 20/80 $30,000 C 5,000 1/4 $7,500 D 30,000 3/8 $45,000 E 10,000 2/24 $15,000 Totals =80,000 =1 $120,000