To alter Units of Measure
Go to Gateway of Tally > Inventory Info. > Units of Measure > Alter
Select the Unit of Measure you want to alter from the Units list. The Unit Alteration screen is displayed as shown.
Make the necessary changes and accept Yes to save or Press CTRL+A.
Note: In Alteration mode, you cannot alter the Number of Decimal places field.
You can delete a Unit of Measure from this screen by pressing Alt + D. However, you cannot delete a Unit of Measure that is part of a compound measure. You must delete the compound measure first.