Does Avg Cost have any implication for a Lot item?     

We have an item that was FIFO some time ago, but via Item Valuation change is now Lot.  That change was done some time ago.   The Avg Cost field is way off now.   But, does that matter?  

For this case, especially if there is not implication, can I change the value in DFDM? 

If not, what can I do?   

Thank you

Sage 100c Advanced 2018  v6.00.10.0