Running totals V8/V8.5 - Insert, field object, running total field and follow dialog box, it is very straightforward.
Running totals V7 - Insert, running total field, and follow the ball.
Running totals not available prior to V7, you must use variables withthe 3 formula technique, check the FAQ section for details. Software Support for Sage Mas90, Macola, Crystal Reports, Goldmine and MS Office