Answer:
Given the table in the attached image;
The final stock can be calculated as;
Let us work out the final stock for each product to confirm if it is correct;
For CBZ;
For ALT;
For SAD;
For PAB;
For MTI;
From the calculations above, we can observe that the only wrong final stock is for Product ID ALT.
It is supposed to be 605 instead of 695.
Therefore, the product ID with a mistake in the final stock is ALT