As you have discovered, suppressed data is still evaluated in sub and grand totals. A few options:
1) Rather than suppress the data, exclude it from your report entirely with a record selection formula. This may not be possible on one-to many relationships.
2) Group your data, and hide the details to keep from seeing the duplicates, Then use running total fields to sum your data, evaluate your RT on charge of group, reset-never or reset-change of group, whichever is appropriate.
3) Use variables and the 3-formula approach to calculate your totals.
Let me know if you need help with any of these. Software Training and Support for Macola, Crystal Reports and Goldmine
714-348-0964
dgilsdorf@mchsi.com