Jackson, Inc., manufactures two products that it sells to the same market. Excerpted below are its budgeted and actual operating results for the yearjust completed: Budget Actual Unit sales Product X 24,499 36,999 Product Y 86,999 79,999 Unit contribution margin Product X $ 3.99 $ 2.59 Product Y $ 17.99 $ 15.99 Unit selling price Product X 5 17.99 $ 18.99 Product Y $ 49.99 $ 39.99 Industry volume was estimated to be 1,853,000 units at the time the budget was prepared. Actual industry volume for the period was 2,550,000 units. Jackson measures variances using contribution margin. The total selling price variance of the period is