Please put formulas too! thanks!

a. Calculate the accounting break-even point. What is the degree of operating leverage at the accounting break-even point? b. Calculate the base-case cash flow and NPV. What is the sensitivity of NPV to changes in the quantity sold? Explain what your answer tells you about a 500-unit decrease in the quantity sold. c. What is the sensitivity of OCF to changes in the variable cost figure? Explain what your answer tells you about a \$1 decrease in estimated variable costs. (Use cells A6 to C17 from the given information to complete this question. You must use the built-in Excel function to answer this question. The OCF must be calculated using the depreciation tax shield approach.) a. Calculate the accounting break-even point. What is the degree of operating leverage at the accounting break-even point? b. Calculate the base-case cash flow and NPV. What is the sensitivity of NPV to changes in the quantity sold? Explain what your answer tells you about a 500-unit decrease in the quantity sold. c. What is the sensitivity of OCF to changes in the variable cost figure? Explain what your answer tells you about a \$1 decrease in estimated variable costs. (Use cells A6 to C17 from the given information to complete this question. You must use the built-in Excel function to answer this question. The OCF must be calculated using the depreciation tax shield approach.)