It's great that subtotals reset at the next heading, but befor doing so we need another level of totals:
  • Subtotals (as is)
  • Totals (new - cummulative of the current heading, including any subheadings underneath the current ending (H2 & H3 within H1, H1 total would include H2 & H3 totals))
  • Grand / Smart Total (as is)