If there are modifications, these should be made in accordance with the mutual agreement between the owner and the contractor. In most cases, there will be no change. The changes will be minor. For example, the layout of cabinets, wiring and the inclusion of additional electrical outlets and other aspects can be discussed by the owner so that his interests are managed by the contractor. As long as construction costs are below the price limit, there will be no difficulty in making changes. 7. All taxes on contracts of enterprise that may be incurred shall be included in the rates indicated in Part 2 (list). All non-competitive items are calculated based on the actual profit of +15% of handshake deals break up on the details of the deal. Oral contracts are often useful for simple exchanges such as “I`m going to exchange my old air conditioner for your old refrigerator”. .