philipma1957 - I set out my shares per round much like you.
Trouble is I just don't get the maths.
Round Pool Me PPLNS
3 151,774,724,299 394,814,221 170,096,734
2 91,699,693,789 1,145,636,326 192,489,823
1 21,683,709,476 205,987,321 205,987,321
The PPLNS share value is not 5n, use your actual share values vs the total share values