A job may require additional quantities, unforeseen work, or scope reductions. KOSAN allows you to organize these movements using additive and deductive methods and relate them to the updated Catalog., preserving the folio, date, reason and line items of the change.
Documenting them from the moment they are identified helps to review their cost and explain what difference there is compared to the initial budget. It also allows the economic analysis to be separated from the authorizations that correspond to the contract.
Additional quantity and new line item
An additional amount increases a job that was already defined: for example, more square meters of an existing finish. A new line item adds a job with its own description, unit, quantity, and price analysis.
This distinction also appears in article 189 of the federal public works regulations as a reference to organize original prices, additional quantities and unforeseen line items. The applicable procedure must be reviewed according to the contract for each work. RLOPSRM Reference.
A reduction requires identifying what quantity or work is no longer part of the scope. The movements must make it possible to reconstruct the difference between what was originally planned and what is in force.
What should be documented before integrating the change
Prepare enough information so that another person can review the need and calculation:
- Folio, date and explanation of the reason.
- Location of work and reference to the corresponding plan, instruction or document.
- Description, unit and measurement of quantity.
- Price used and analysis of the resources that support it.
- Estimated effect on time, supplies and resources.
- Documents and authorizations required by the contract.
Accuracy of description matters. A quantity in m² needs to identify what construction solution it includes; A quantity in m³ must correspond to the defined volume and procedure.
Example with additions and deductions
Let's assume a base budget of $300,000, formed by 1,000 m² of a job at $300 per m². We consider three movements, all on the same economic basis and before VAT. Prices and quantities are hypothetical.
| Movement | Operation | Economic effect |
|---|---|---|
| Additional amount of existing work | 120 m² × $300 | +$36,000 |
| New job | 12 m³ × $2,500 | +$30,000 |
| Reduction of existing work | 50 m² × $300 | −$15,000 |
| Net change | $36,000 + $30,000 − $15,000 | +$51,000 |
The updated amount in the example is $300,000 + $51,000 = $351,000. The current quantity of the original job changes from 1,000 to 1,000 + 120 − 50 = 1,070 m².
Preserving the three movements allows us to explain the result. If you recorded only the net change, you would lose the separation between the additional volume, the new line item, and the reduction.
These amounts illustrate the organization of the analysis. If your quote distinguishes direct cost and selling price, maintain that separation as well when reviewing each move.
How changes are organized in KOSAN
In the changes section, KOSAN allows you to create a additive or one deductive. You can register folio, date and reason, select existing line items and indicate the additional or reduced amount.
For an additive you can also prepare a new line item with its description, unit, quantity and price, and relate its analysis where appropriate. The amount is obtained from the line items of the movement.
The change can be saved as draft to review it. When applying a movement, it is integrated into the Updated catalog. The display distinguishes original direct cost, applied changes and current direct cost.
KOSAN also allows you to prepare a PDF report of the additive or deductive. That document helps to review the movement and preserve its explanation. Applying it within the system updates the job data; contractual authorization must be supported by the corresponding procedure.
How to check the full effect
The amount of line item is one part of the analysis. A change may require more staff, another purchase, or a new activity in the program. That is why it is advisable to also review:
- If it affects work already executed or pending.
- If you need to modify the sequence or duration of activities.
- If you change quantities of materials and equipment.
- If it generates new payment and collection needs.
- Whether estimating documents should use an updated reference.
KOSAN's budget, program, simulation and estimation modules allow you to organize these reviews from the construction information. Check that each association and condition captured represents the agreed change.
Frequently asked questions
Is an extra work item the same as a price adjustment?
A new line item modifies the scope of work defined in the catalog. A price update revises the value of existing resources or line items; their contractual treatment must be identified separately.
Can I delete a quantity that will no longer be executed?
Document the reduction to preserve its explanation. KOSAN allows you to work with deductions and keep the line item in the history even when the current amount remains at zero.
Is applying the additive in KOSAN equivalent to customer authorization?
The application integrates the movement into the data of the project. Also keep the authorization and documents required by your contract.
KOSAN allows changes to be carried from their explanation to the current catalog, with movements that you can review separately and report clearly.
To analyze resources for a new job, see the unit price analysis guide.