"contract sum" refers to the total amount of money agreed upon in a contract for goods or services. It is the agreed price that one party will pay to the other to fulfill the terms of the contract. Full definition
In addition, a further percentage (6 per cent of the whole contract sum) is held back from each payment actually made. (rogersmith.info)
Earlier, the Commissioner for Tertiary Education, Science and Technology, Dr Amina Ahmed said the project was awarded at an initial contract sum of N690, 977,860.52 but revised to N1, 052,712,252.49 due to the down turn of the national economy and the consequent hike in foreign exchange. (newsdiaryonline.com)
As for the District Hospitals, maintenance was part of the total contract sum. (ghanapoliticsonline.com)