To which labor and/or materials cost, shall be added fifteen per centum (15%) to cover general expenses, superintendence, use of tools and profit. 

v. In the event that the Engineer directs that additional work is to be done, in a location other than that which is shown in the contract drawings, the Contractor shall be requested to submit a quotation for this work. Payment shall then be made in the form of a Change Order. 

GC 7.04 VARIATIONS IN TENDER QUANTITIES 

  1. Where it appears that the quantity of work to be done and/or material to be supplied by the Contractor under a unit price tender item will exceed or be less than the tender quantity, the Contractor shall proceed to do the work and/or supply the material required to complete the tender item and payment will be made for the actual amount of work done and/or materials supplied at the unit prices stated in the tender except as provided below:

    1. in the case of a major item where the amount of work performed and/or material supplied by the Contractor exceeds the tender quantity by more than 15%,either party to the Contract may make a written request to the other party to negotiate a revised unit price for that portion of the Work performed and/or material supplied which exceeds 115% of the tender quantity. The negotiation shall be carried out as soon as reasonably possible. Any revision of the unit price shall be based on the actual cost of doing the work and/or supplying the material under the tender item plus a reasonable allowance for profit and applicable overhead.

    2. In the case of a major item where the quantity of work performed and/or materials supplied by the Contractor is less than 85% of the tender quantity, either party to the Contract may make a written request to the other party to negotiate a revised unit price for that portion of the work performed and/or material supplied. The negotiation shall be carried out as soon as reasonably possible. Any revision of the unit price shall be based on the actual cost of performing the work and/or supplying the material under the tender item plus a reasonable allowance for profit and applicable overhead. Alternatively, where both parties agree, an allowance equal to 10% of the unit price on the amount of the underrun which is less than 85% of the tender quantity will be paid.