Phelps Glass Inc reported financial data for an assignment, including $10 million in net revenues, $5 million in variable costs, $2 million in controllable fixed costs, $1 million in non-controllable fixed costs, and $500,000 in untraceable costs. The accounting manager supplied this data and asked the student to calculate the controllable margin, total contribution, CPC, and operating income in Excel and show the formats. A second multiple choice assignment was attached in Word.