Thank you for the quick reply
<label><?php echo($row_WADWC_data['XLABEL'].".\n".$row_WADWC_data['DATAGROUP']); ?></label>
added ".\n". for line break
This put's size in roll over but also put's in x axis, which is ok until there are more than 5-6 data points.
to format the price
change the line under to:
<value><?php echo(number_format($row_WADWC_data['YVALUE'], 2)); ?></value>"
this does not appear to work
see attached screen print