Qty in Stock v Running Total

Suggested

HI

I'm having a problem still with stock valuation.  For example, here is a product that I have zero stock for, but if I send the activity to Excel, and perform a running total, the running total shows I have -43.5 items in stock, rather than zero.

On other examples I have tried, I have stock of 10 items, but the running total is showing I have -9.

Does Sage use something other than the activity to work out stock levels?