Esta macro formatará a tabela nomeada no slide ativo para ter números negativos em vermelho e entre parênteses. Eu não encontrei uma maneira de formatar a tabela manualmente.
Sub FormatTheTable()
Dim x As Long
Dim y As Long
With ActivePresentation.Slides(4).Shapes("Table 540").Table ' Table 540 is the name of the shape/table
For x = 2 To .Rows.Count 'Starts on the second row to ignore titles
For y = 2 To .Columns.Count 'Starts on the second column to ignore titles
If .Cell(x, y).Shape.TextFrame.HasText Then 'Checks that the cell has text
If CDbl(Val(.Cell(x, y).Shape.TextFrame.TextRange.Text)) < 0 Then 'converts text to a double and evaluates it to be less than zero
.Cell(x, y).Shape.TextFrame.TextRange.Text = CDbl(Val(.Cell(x, y).Shape.TextFrame.TextRange.Text)) * -1 'multiply by negative 1 to remoe the negative sign
.Cell(x, y).Shape.TextFrame.TextRange.Font.Color = RGB(255, 0, 0) 'Change font color to red
.Cell(x, y).Shape.TextFrame.TextRange.Font.Bold = True 'Makes the font bold
.Cell(x, y).Shape.TextFrame.TextRange.Text = "(" & .Cell(x, y).Shape.TextFrame.TextRange.Text & ")" 'Adds parentheses
Else
.Cell(x, y).Shape.TextFrame.TextRange.Font.Color = RGB(0, 0, 0) ' makes the non-negative numbers font color black
.Cell(x, y).Shape.TextFrame.TextRange.Font.Bold = True 'Makes the font bold
End If
End If
Next ' Column
Next ' Row
End With ' otbl
End Sub