But in order to show that the prior U/M shown in the transaction is obsolete, QuickBooks actually displays the U/M within brackets. If you proceed with making a U/M change of this type, the old U/M will appear in all previously saved transactions using the original U/M. QuickBooks will not make this math change for you when you reassign the U/M. If you change the item's unit of measure from foot to yard, your quantity on hand still will be 600, but should actually be changed 200 to be accurate.
For example, suppose one of your inventory part items is nylon cord and you currently have 600 feet of nylon cord in inventory.