What costs does the engineering economy include?

It mainly includes: expenditure related to land, expenditure on construction and installation, expenditure on purchasing tools, etc.

The project cost includes the direct and indirect costs related to the execution of the contract from the signing of the construction contract to the completion of the contract.

Direct expenses refer to all expenses incurred only to complete the contract and can be directly included in the contract cost accounting object, including:

1. Fees for the use of materials, labor and machinery (that is, the "direct engineering fee" for construction)

2. Other direct costs (including secondary loading and unloading fees, amortization fees for temporary facilities, use fees for production tools and appliances, inspection and test fees, engineering positioning retest fees, site cleaning fees, etc. ) is also called "measure fee".