I see alot of confusion with this and it makes stuff hard to check if you made money or lost.

BTC, LTC, ETH and some others you can buy directly with USD but most coins (STEEM!) you actually buy or sell with BTC first.

So in this case you actually spend BTC not USD, despite that USD is there and this is how you should look on the investment - with currency that you used to buy the coin.

So when looking for profits you should actually to look for a pair that was used USD/BTC/ETH etc, not the USD value.

Currently coins can move 0 satoshi and gain USD and sure you made profit, but not trading wise.

Top10 Marketcap Coins

Actually POPULAR (aka more than 2 exchanges to USD) coins here are only BTC, ETH, XRP and LTC. USDT i dont count as this is for me an altcoin with not sure backups.

So for your trading records (unless you really wanna go out into FIAT fast) keep prices of things with currency pair you have used to buy it with.

Extra Tip

If you are good with fast counting then this 2 exchanges often have really amazing prices but the equation will not be easy.

• OpenLedger and CNY pairs. Here coins in CNY are often cheaper than on other places in BTC or USD.
  
• Binance and BNB pairs. There is no fees on this and a few coins trade this pair, some really good deals here.
  

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