Murray Medical awards a bonus of 5% (.05) to account reps who earn Platinum-tier ratings from their clients. In cell I11, enter a formula using the IF function and structured references that tests whether the value in the Tier field is equal to "Platinum". If it is, multiply the value in the Total Sales field by 0.05. Otherwise, enter 0 (zero) in the cell. If Excel does not copy the formula automatically, fill the range I12:I29 with the formula in cell I11. (Hint: To avoid an #SPILL error, enable implicit intersection by placing the This Row specifier (@ character) in front of field names.)