2. The following information is available for the Sigma Company for the month of July: Static Budget Actual Units 5,000 5,100 Sales revenue $60,000 $58,650 Variable manufacturing costs $15,000 $16,320 Fixed manufacturing costs $18,000 $17,000 Variable marketing and administrative expense $10,500 $10,000 Fixed marketing and administrative expense $12,000 $11,000 The total sales volume variance for the month of July would be a. $100 favorable. b. $700 favorable. c. 1,350 unfavorable. d. $2,550 unfavorable