please answer all parts of the question with detail and steps

7-22 Flexible budget, working backward. (LO 2) The Clarkson Company produces engine parts for car manufacturers. A new accountant intern at Clarkson has accidentally deleted the company's variance analysis calculations for the year ended December 31. The following table is what remains of the data. Required 1. Calculate all the required variances. (If your work is accurate, you will find that the total static-budget variance is $0.) 2. What are the actual and budgeted selling prices? What are the actual and budgeted variable costs per unit? 3. Review the variances you have calculated and discuss possible causes and potential problems. What is the important lesson learned here? Check Fiqure: Total static-budqet variance =$0