Copy a Range to Another Worksheet
Final
Option Explicit
Sub CopyTwoRange()
    
    Dim wb As Workbook: Set wb = ThisWorkbook ' workbook containing this code
    
    Dim sws As Worksheet: Set sws = wb.Worksheets("Sheet1")
    
    Dim dws As Worksheet: Set dws = wb.Worksheets("Sheet2")
    Dim dlRow As Long: dlRow = dws.Cells(dws.Rows.Count, "B").End(xlUp).Row
    Dim srg As Range
    Dim dCell As Range
    
    Set srg = sws.Range("B412:O412")
    Set dCell = dws.Cells(dlRow, "B").Offset(1)
    dCell.Resize(, srg.Columns.Count).Value = srg.Value
    
    Set srg = sws.Range("P389:Z389")
    Set dCell = dws.Cells(dlRow, "P").Offset(1)
    dCell.Resize(, srg.Columns.Count).Value = srg.Value
End Sub
One Range
Sub Lesson()
    
    Dim wb As Workbook: Set wb = ThisWorkbook ' workbook containing this code
    
    ' Source (Copy FROM (Read))
    
    Dim sws As Worksheet: Set sws = wb.Worksheets("Sheet1")
    Dim srg As Range: Set srg = sws.Range("B412:O412")
    
    ' Destination (Copy TO (Paste, Write))
    
    Dim dws As Worksheet: Set dws = wb.Worksheets("Sheet2")
    ' Last Row
    Dim dlRow As Long
    
    ' Last non-empty row in column `B` using 'End' (most popular, easy).
    dlRow = dws.Cells(dws.Rows.Count, "B").End(xlUp).Row
    
'    ' Last non-empty row in column 'B' using 'Find'.
'    dlRow = dws.Columns("B").Find("*", , xlFormulas, , , xlPrevious).Row
'
'    ' Last NON-BLANK row in column 'B' using 'Find'. Useful when there are
'    ' many formulas evaluating to an empty string ("") at the bottom and
'    ' you want to exclude them.
'    dlRow = dws.Columns("B").Find("*", , xlValues, , , xlPrevious).Row
    
    ' With 'Offset(1)', the cell BELOW the last row is referenced.
    Dim dCell As Range: Set dCell = dws.Cells(dlRow, "B").Offset(1)
    
    ' Copy
    
    ' Copy ONLY VALUES (copy by assignment)
    dCell.Resize(srg.Rows.Count, srg.Columns.Count).Value = srg.Value
    
'    ' Copy values and formats and formulas
'    srg.Copy dCell ' short for srg.Copy Destination:=dCell
'
'    ' Copy values and/or formats and/or formulas and/or column widths...
'    srg.Copy
'    dCell.PasteSpecial ' many options
'    Application.CutCopyMode = False
    
End Sub
    
Two Ranges
Sub LessonLearned()
    
    Dim wb As Workbook: Set wb = ThisWorkbook ' workbook containing this code
    
    Dim sws As Worksheet: Set sws = wb.Worksheets("Sheet1")
    Dim srg As Range: Set srg = sws.Range("B412:O412")
    
    Dim dws As Worksheet: Set dws = wb.Worksheets("Sheet2")
    Dim dlRow As Long: dlRow = dws.Cells(dws.Rows.Count, "B").End(xlUp).Row
    Dim dCell As Range: Set dCell = dws.Cells(dlRow, "B").Offset(1)
    
    ' Since you are copying only one row, you can use...
    dCell.Resize(, srg.Columns.Count).Value = srg.Value
'    ' ... which is short of...
'    dCell.Resize(1, srg.Columns.Count).Value = srg.Value
'    ' ...instead of ...
'    dCell.Resize(srg.Rows.Count, srg.Columns.Count).Value = srg.Value
    
    ' Since the results from the first one-row range go into the same row
    ' adjacent to the first range you could do:
    With sws.Range("P389:Z389")
        dCell.Offset(, srg.Columns.Count) _
            .Resize(, .Columns.Count).Value = .Value
    End With
    ' ... where the columns count of the previous range is used as the offset,
    ' while the columns count of the current range is used with 'Resize'.
    
    ' Of course, this may be too advanced at this moment so you should use...
    
    Set srg = sws.Range("P389:Z389")
    ' If the last rows are different then do:
    'dlRow = dlRow = dws.Cells(dws.Rows.Count, "P").End(xlUp).Row
    Set dCell = dws.Cells(dlRow, "P").Offset(1)
    dCell.Resize(, srg.Columns.Count).Value = srg.Value
End Sub