. In cell L4, enter a formula that uses a nested IF function and structured references to calculate the Discount Amount: a. If the value in the Discount Y/N column is equal to N, the Discount Amount column value should be 0. b. If the value in the Discount Y/N column is equal to Y, the formula should check if the value in the Tenure (Yrs) column is less than 4. c. If the value in Tenure (Yrs) column is less than 4, the Discount Amount column value should be 0.10. d. Otherwise, the value of Discount Amount column should be 0.15. (Hint: A second IF function is used for the false return. The Discount Amount column is formatted with the Percentage Number format, so the values returned by the nested IF function will appear as 0%, 10%, or 15%.)