"1. Column B figures for the Summary and Detailed Summary Page information should equal the sum of the Column B figures on your previous report and the Column A figures on this report minus the Column C figures.
Please file an amendment to your report to conect the Column B discrepancies for Lines 6(a), 6(c), 7(a), 7(b), 7(c), ll(a)(iii), 11(c), 11(d), 11(e), 13(a), 13(c), 14, 15, 16, 17, 19(a), 19(c), 22 and all subsequent
report(s) that may be affected by this conection. Note that Column B should reflect only the election cycle-to-date totals. (2 U.S.C. § 434(b))" (link)
Does H & R Block file campaign finance reports?