Inventory of assets table

In the Inventory of assets table there is a column with heading “Impact”. The instruction at the top of the table states that one should copy the score from the Risk Assessment table. However, each item from the Inventory of Assets table may have several risks attached to it in the Risk Assessment table. Moreover if one uses the suggested scores by Advisera (0, 1, 2) for both Consequence and Likelyhood, most assets can have several scores between 0 and 4. What am I to do with the Impact column and what is the significance of this column? In other words what does it add to the entire system? If I should copy all scores then I need to copy all risk descriptions as well. This seems like a lot of unnecessary work. Can you please advise?