Assume you are making a product that has two ingredients, oil and vinegar, which are substitutable. The recipe for one batch of 10 gallons is oil—S gallons @ $6 a gallon and vinegar—S gallons @ $10 a gallon. At the end of the month, you find the company made 500 gallons of finished products using 210 gallons of oil costing $5.90 a gallon and 300 gallons of vinegar costing $11 a gallon. What is the mix variance for each of the two ingredients?