•  The corporate office had budgeted Arby's to sell 2,400 roast beef sandwiches during the week beginning January 5. Each sandwich was expected to contain 8 ounces of beef. During the week of January 5, the shop actually sold 2,600 sandwiches and used 21,800 ounces of beef. The standard cost of beef is $0.48 per ounce. The variance report from company headquarters showed an unfavorable materials usage variance of $288.
• Required:
  1. Determine if the materials usage variance was calculated correctly. If not, recalculate it.
  2. Provide three possible explanations for the materials usage variance identified in Requirement 1.