Comparison of House, Senate, Conference Appropriations

We've completed our analysis of the House, Senate and Conference budgets, and the numbers don't add up to what was reported in the news with respect to how much the budget actually costs. Below is our spreadsheet that compares the House, Senate and Conference numbers:

The press reported that this is a $27.4 billion budget, but our numbers indicate that it's a $27.8 billion budget, and then only if you don't include the federal grants. However, the problem with that is that the federal grants are appropriated for, and they are part of the regular budget. Our numbers indicate that the conference committee actually approved a $30.3 billion budget (as can be seen below).

     Type                       House           Senate          Conference
     =======================================================================
     Direct Appropriation  $26,564,903,856  $26,827,416,172  $26,907,008,724
     Chargeback               $400,189,124     $391,745,702     $391,745,702
     Retained Revenue         $467,318,771     $503,056,162     $499,891,667
     Subotal               $27,432,411,751  $27,722,218,036  $27,798,646,093
     Federal Grants         $2,394,648,332   $2,300,842,188   $2,485,936,271
     =======================================================================
     Grand Total           $29,827,060,083  $30,023,060,224  $30,284,582,364

Click here to see a spreadsheet that compares all the House, Senate and Conference Report Appropriations.

Am I wrong? Show me where. I'm using the numbers that the House and Senate reported in their respective budgets and in the Conference committee reports.