Hello There,

I'm new to Zoho books, used to work on wavapp , which had a simple inventory tracking,

I'm trying to enter all the data including the bills on Zoho books manually due to migration issues so it can calculate the COGS.

My problem is I purchased over the last 2 years same products but sometimes it came with different costs for example, in Jan purchased shampoo X for 10 USD/unit and in February I got it for 12 USD /unit, what should I do, Should I calculate the average cost of all the bills I Ordered the item with or  Should I  duplicate the item with different costs?