Hello,

I can see the different and it's quite big amount. Can you please let me know the steps to reproduce this bug?

Thank you

Step 1: Add and Save New Sale [Products with Different Default Unit (pc) & Default Sale Unit (pack: pc * 50)]. (NO Error occurred)
Step 2: Edit the sale added just now.
Step 3: In Sale product line, Open product edit modal, Edit Qty or Net Unit Price and Save. (Error occurred).
The net Unit Price is Multiplied two times by the unit operator.

Thank you for the details. I check and will fix this in the coming update