Why is my cost per share on my tax lots much higher than what I actually paid?

I’m looking at selling by tax lots on Robinhood and it shows the cost per share for each tax lots. For example a stock which I purchased on 3/28 for 100 shares for $16.38 for a total of $1,638.

But when I go to sell per tax lots it says my cost per share for those 100 shares is $24.33. It’s also showing a gain/loss of $862 at a current share price of $15.71.