The amount of the permanent annual charge for the National Debt during the current and every subsequent financial year, shall be the sum of twenty-three million pounds, and " twenty-three " shall be substituted for " twenty-five " in section one of the [38 & 39 Vict. c. 45.] Sinking Fund Act, 1875, as amended by subsequent Acts, and sub-section one of section two of the [50 & 51 Vict. c. 16.] National Debt and Local Loans Act, 1887, and section one of the [52 Vict. c. 6.] National Debt Act, 1889, shall be repealed.