The article outlines the steps required to edit the units of different sizes within a Job. Note this can only be done if the Job is in the Editing Status.
FOLLOW STEPS BELOW:
1. Search for the Job in the Product Costing Window
2. Click the Edit Size/Units button
3. Enter the changes for each size as needed in the Units column
4. Click Enter on your keyboard to save the changes
5. Close the window to see the affects of the changes
NB. For a quick tutorial watch below