Today one of the most recent hype is cryptocurrency and to buy the cryptocurrency our main question is where to buy

Biggest Flaw -You cannot understand what is the profit or loss while investing in cryptocurrency ?

I haven't seen a single crypto exchange where we can see the profit amount or loss amount and what is the total amount invested in USD or any currency

Let me give you a simple example that today (03-Oct-17) I bought 10 NEO at the rate of (0.00750000 BTC=32 dollars) it means total amount invested is 320 Dollars and tomorrow I bought again 20 NEO at the rate of (0.00950000 BTC =40 dollars ) and today the bitcoin rate is 4300 dollars

Now, lets say after 1 year ( 03-Oct-17) I want to check what was my initial invested amounted and what is my profit/Loss in USD
how will i calculate?

After 1 year suppose Bitcoin rate is 10000 dollars an Neo costs 300 dollars .So , If i will check in my Bitrex or any other exchange I will check by the orders of Neo which was 0.00750000 BTC and 0.00950000 BTC which will be approximately 100 dollars for ex

So, according to me that we won't be able to calculate the profit in long run accurately.Please Do let me know if there is any way we can check I will be very grateful to you guys .I am also quite new to this crypto space but I am learning fast as possible .So, I want to know what is your take is there any way we can check

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