N.J. Stat. Ann. § 5:10A-34

34. The appropriate officer of the commission shall prepare a statement showing, in detail, the cost of the improvement proposed pursuant to section 33 of P.L.2015, c.19 (C.5:10A-33). Such statement shall also show the proportion of the amount to the whole cost of improvement, if any, paid or contributed by any public body or by any individual or entity. The total amount of assessment levied upon the land benefited by the improvement shall not exceed the cost thereof.