Sheridan Inc. has $4$ product lines: sour cream, ice cream, yogurt, and butter. Demand of individual products is not affected by changes

in other product lines. $30\%$ of the fixed costs are direct, and the other $70\%$ are allocated. Results of June follow:

Prepare an incremental analysis of the effect of dropping the sour cream product line. $($Enter negative amounts using either a negative

sign preceding the number e$.$g$.-45$ or parentheses e$.$g$.(45).)$