Oh, so if there's $1.54 rake taken from the hand, and you were dealt cards, you get credit for the whole $1.54? That's really weird. That is not dealt rake, contributed rake, or total rake. Wish they calculated rakeback like that.
Maybe try:
Stat GroupName="Default" ColumnName="Ipoker PPs" ValueExpressions="Sum((case when (PKH.RakeAmount * PKH.numberofplayers) between 301 and 500 then 13 else 0 end) +(case when (PKH.RakeAmount * PKH.numberofplayers) between 201 and 300 then 11 else 0 end) +(case when (PKH.RakeAmount * PKH.numberofplayers) between 151 and 200 then 9 else 0 end) +(case when (PKH.RakeAmount * PKH.numberofplayers) between 101 and 150 then 6 else 0 end) +(case when (PKH.RakeAmount * PKH.numberofplayers) between 51 and 100 then 3 else 0 end) +(case when (PKH.RakeAmount * PKH.numberofplayers) between 25 and 50 then 2 else 0 end))/1.0 as IpokerPPs" Evaluate="IpokerPPs" ColumnHeader="Ipoker\nPlayer Points" ColumnFormat="0.00" ColumnWidth="*" Tooltip="Ipoker Player Points earned" /