Chilczuk, S.A., of Gdansk, Poland, is a major producer of classic Polish sausage. The company uses a standard cost system to help control costs. Manufacturing overhead is applied to production on the basis of standard direct labor-hours. According to the company's planning budget, the following manufacturing overhead costs should be incurred at an activity level of 21,000 labor-hours (the denominator activity level) Variable manufacturing overhead cost Fixed manufacturing overhead cost Total manufacturing overhead cost $ 73,500 115,500 $ 189,000 During the most recent year, the following operating results were recorded Activity: Actual labor-hours worked Standard labor-hours allowed for the actual output 18,000 19,000 Cost: Actual variable manufacturing overhead cost incurred Actual fixed manufacturing overhead cost incurred $ 84,600 $ 99,750 At the end of the year, the company's Manufacturing Overhead account contained the following data Manufacturing Overhead 184,350 Applied Actual 171,000 13,350 Management would like to determine the cause of the $13,350 underapplied overhead Required: 1. Compute the predetermined overhead rate. Break the rate down into variable and fixed cost elements 2. Show how the $171,000 Applied figure in the Manufacturing Overhead account was computed 3. Breakdown the $13,350 underapplied overhead into four components: (1) variable overhead rate variance, (2) variable overhead efficiency variance, (3) fixed overhead budget variance, and (4) fixed overhead volume variancee