The proposed expenditures shall be itemized in such form and to such extent as shall be provided by law, or, in the absence of such provision, by regulations established by ordinance. Separate provision shall be included in the budget for at least:
(a) Interest, amortization, and redemption charges on the public debt for which the faith and credit of the city is pledged.
(b) Other statutory expenditures.
(c) The payment of all judgments.
(d) An amount equal to the deficit for operations of water and sewer and other public utilities during the last completed fiscal year, separately stated for each utility which appears in a separate section of the budget.
(e) Administration, operation, and maintenance of each office, department, or agency of the city itemized by character and object of expenditure.
(f) Contingent expense in an amount of not more than three per cent of the total proposed expenditures.
(g) Expenditures proposed for capital projects. (Acts 1951, ch. 539, § 85)