The conversion was a bug on my screen btw, it's around $98 after I reloaded yesterday but forgot to make the video again.
Also it's not a conversion, it locks USD value when investment is created because our algorithm can then provide value that is easy to read and display, it's just easier. So, you get USD to BTC back when the investment is over. So the USD and BTC you get are based on the exact rate and time of the investment end.