Unclear management of end of year balance

Describe the problem:
I have been generating multiple tax reports, where the cost and price description of those tokesn seem to change. The only change I did in the Koinly was manage liquidity pools for completely unrelated tokens. How is it possible that the avg cost for a coin can change upon this? The changes are also huge, inflating my total end of year balance with 15%. As this is information about 2021, I have no idea which one is correct, but the total taxes to be paid really make a big difference.

How can you ever know when what you see is actually correct?

Which exchange/wallet is this regarding?
Decentralised wallets, binance, Kucoin

How did you import data into this wallet?
API and CSV

What have you tried to fix this so far?
I keep on going through my transactions to tag them correctly, but as everything has such a big impact, it does not feel fully safe.

Hi @sok

Thanks for your message. :blush:

There could be a lot of reasons for this happening, please can you submit a request here:

https://support.koinly.io/hc/en-us/requests/new

Or email us at support@koinly.io :+1:t2:

I think looking at your account is probably the best option.