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# Complete a model via the Edit mode

# Editing projection assumptions


![projection assumptions, "inputs" rows, projection types, Basic assumption, starting value, growth assumptions, given period, Constant value, value each month, table, edit button, change type, replace value](https://storage.crisp.chat/users/helpdesk/website/-/b/1/b/c/b1bc8d133855c000/e5bed9ef-398d-497d-823a-e1f2cf_ogifbk.png)

You can modify your projection assumptions on the "inputs" rows. There are currently two types of projection:
* **"Basic assumption"**: you set a starting value (manually or automatically taking the last actual value), and you define growth assumptions over a given period.
* **"Constant value"**: you set a value for each month of your projection. Values are entered directly in the table, for each of the available working assumptions.

Each "input" row is associated with one of these types. You can change this type using the edit button at the beginning of each row.

You can replace a basic assumption value directly in the table.