In the Variance column in the Column Layout, is there an "XCR" on the Print Control line? If so, then you should simply go to the Row Format, and put a "C" in the Normal Balance column for the 2 lines that are incorrect.
If the XCR is in the Variance column in the Column Layout, this means that the variance being computed is probably "Favorable vs Unfavorable", rather than a straight numeric variance.
John