Jonathan, thanks for the quick reply. Think I maybe made a noob error with the software.
The coin value has gone down so would that make the difference? Does Polo take the coin value drop into account in the trade history analysis screen.
This is what I am using to base how affective my trading has been.
Below is one coin traded today it now stands at 0.00019925 from when trading earlier today.
Average Buy Price: 0.00020118 BTC
Total Buys: 9303.06704256 STEEM
Break Even Price: 0.00018650 BTC
Average Sell Price: 0.00020256 BTC
Total Sells: 8506.90413278 STEEM
Profit/Loss: -0.14848666 BTC