I purchased 2 Amazon shares 1 each at different times
1 share - May 2019 at £1500
1 share - Apr 2020 at £1940
Today the share was trading at £1900 and my investment gain/loss in +6% which is correct.
I would imagine that when I sell one share of Amazon at £1900 my investment gain should still read as +6% ? But what I see is around -2% which is computed based on the share I purchased on Apr 2020 and not based on the average purchase price.
So I would like to understand if that is the intended calculation?