How are the GL entries calculated at the time of sales update as we saw few issues where GL entries

How are the GL entries calculated at the time of sales update as we saw few issues where GL entries are varying with 0.01 amount. When we checked in detail, it was found that the items whose quantity is equal to or more than 10, there is difference in invoice and GL amount. It creates the batch out of balance. So if anyone can help to advice on wat calculations the GL amounts are created and what could be the reason for such issue.

I am working on JDE world A7.3 cum 10 version

Thanks