Cost basis for two successive BTC transactions for almost the same value are widely divergent

Koinly Support
1

Describe the problem:
Cost basis for two successive BTC transactions for almost the same BTC value, are widely divergent by £716
I have computed the cost basis manually myself for three successive BTC transactions. The first and third calculation reflects the Koinly calculation correctly.
The 2nd Koinly cost basis calculation for almost the same amount as the third Koinly calculation shows a +£716 difference.

Which exchange/wallet is this regarding?
Kraken for both

How did you import data into this wallet?
Auto sync

What have you tried to fix this so far?

2

Hi @lawrence_hedderly

I suggest you go through the guide below to troubleshoot the cost basis:

How to troubleshoot cost basis calculations