4(a) Her Honour ... erred in law, in rejecting the appellant's claim for a 10 per cent overhead/profit margin in the sum of $461,356 as a component of the appellant's quantum meruit. Her honour ... was wrong in holding where the appellant was held to be entitled to recover on a quantum meruit, upon rightful rescission of the relevant contract between the appellant and the respondents it was not reasonable for the appellant to recover overhead profits as part of the reasonable cost of the work it performed.
4(b) Her Honour ... erred in law in deducting the sum of $278,574.91 from the appellant's quantum meruit entitlement such sum being the amount of the appellant's contractual variations claims under the relevant contract between the appellant and the respondents, which were rejected by her Honour ... as being variations to the contract works performed by the appellant under the said contract. Her Honour was wrong ... in holding that upon the appellant rightfully rescinding the said contact, and recovering on a quantum meruit, the value of the appellant's contractual claims for extra work which were held to be unrecoverable under the said contract, should be set off against the fair and reasonable cost of the appellant performing its work.
4(c) Further and alternatively to (b) her Honour ... erred in law in deducting the sum of $25,324.99 from the appellant's quantum meruit entitlement, such sum being the overhead and profit component of the appellant's contractual variations claim which were rejected by her Honour ... as being variations to the contract works. Her Honour ... having determined that the appellant was not entitled to recover a margin for overhead and profit within its quantum meruit claim, was wrong in double deducting the overhead and profit component of the appellant's rejected variations claims from its quantum meruit entitlement.
4(d) Her Honour ... erred in law in deducting the sum of $83,695 from the plaintiff's quantum meruit entitlement, such sum being a portion of the respondents' contractual 'deduction variations' claims which her Honour the Chief Justice determined in favour of the respondents under the said contract. Her Honour the Chief Justice was wrong in holding that upon the appellant rightfully rescinding the said contract, and recovering on a quantum meruit, the value of the respondents' claims for contractual work not performed by the appellant, should be set off against the fair and reasonable cost of the appellant performing its work.
4(e) Her Honour ... erred in law in deducting the sum of $583,271.96 from the appellant's quantum meruit entitlement, such sum being the amount of the appellant's contractual delay costs claim which was held to be unrecoverable under the said contract. Her Honour ... was wrong in holding that upon the appellant rightfully rescinding the said contract, and recovering on a quantum meruit, the appellant's unsuccessful claims for delay costs under the contact should be set off against the fair and reasonable cost of the appellant performing its work.
4(f) Further and alternatively to (e), her Honour ... erred in law in deducting the sum of $184,153.19 from the appellant's quantum meruit entitlement, such sum being the overhead and profit component of the appellant's delay costs claims which were held by her Honour ... to be unrecoverable under the said contract. Her Honour ... having determined that the appellant was not entitled to recover a margin for overhead and profit within its quantum meruit claim, was wrong in double deducting the overhead and profit component of the appellant's rejected delay costs claims from its quantum meruit entitlement.