Chesterfield company makes plastic toys. They use a standard costing system which allows management to isolate variances in a timely manner, and allocate overhead based on machine hours. The following are the standards developed for the current year: *Allocation rates are based on a denominator of 13, 500 machine hours. The following actual information is available for the month of March, 2017: Required: Prepare, in good format, a comprehensive variance analysis for March, 2017. As part of your analysis, include at least one plausible cause for each variance calculated. Prepare the necessary journal entries