The generic approach if dectime is integer or float:

1) In the ixBug - Header pre_place script set the sum to 0;
report.sum_blobbyman = 0;

2) In the Page Body (reportbody1) post_place script add the current value to the sum:
report.sum_blobbyman += report.cursor.columnValue( 'dectime' );

3) Add an empty expression field (e.g. expRate) to the ixBug - Footer - to output the resulting value

4) In the expRate pre_place script write your expression
report.controls.expRate.label = report.sum_blobbyman * 200;

Hello Rob,

Currently, it is possible to do with JavaScript, not the expressions.

What type of dectime field? What database is used?