If you want to display several decimals when displaying the quantity on your product you can follow the method below.
Step 1. Check Product Quantity
Step 2. Go to Setup - More Menu - Module Configuration - Inventory - Display
In this case i changed to 4 so I get longer decimal behind the comma.
Step 3. Recheck the Result on Product Inventory
Then the results that will be obtained are as shown below. You should see the differences between 2 and 4. 2 mean you wanted to get last 2 number from decimal and 4 mean you want to get 4 number from decimal if you do not wanted to show the decimal simply change it to 0.
You might like to read these related articles below :
How to discontinued on product : Discontinue Product or Variant
You can generate Product Code/SKU/Stock automatically : Auto Generate Variant Code
You can show display quantity product at product menu : Show Inventory in Products Menu