'Well Stocked' status assigned when in stock quantity is sufficient for more than two weeks of sales but less than 45 days of sales.
This is optimal quantity as it will be generating profit without triggering storage fees for over stocked items.
You goal should be to have all your inventory under 'Well Stocked' status.
You may want to check on it once a week to make sure that you always have these in stock and prepare a new shipment to be sent to eWarehouse ahead of time, before items go into 'Low Stock' status.