The Manager of MedSupply Takes a Reading of the Cash

The manager of MedSupply takes a reading of the cash register tape each hour. At 1:00 P.M. the tape read $990.5. At 2:00 P.M. the tape read $1423.5. Find the amount of sales between 1:00 P.M. and 2:00 P.M.

A) $740.50
B) $990.50
C) $423.50
D) $433.00
E) $722.50