Jackson, Inc., manufactures two products that it sells to the same market. Excerpted below are its budgeted and actual operating results for the year just completed: Budget Actual Unit sales Product X Product Y Unit contribution margin Product X Product Y Unit selling price Product X Product Y 22,500 42,000 90,000 80,000 $ 4.80 $ 3.90 $ 13.00 $ 14.00 $ 13.00 $ 14.00 $ 30.00 $ 29.00 Industry volume was estimated to be 1,875,000 units at the time the budget was prepared. Actual industry volume for the period was 2,440,000 units. Jackson measures variances using contribution margin. The market size variance is: