Try:
SELECT Value, V
FROM
(SELECT
ROUND(SUM(TotalAmount),2) AS [Total Amount],
ROUND(SUM(Amount1),2) AS [A],
ROUND(SUM(Amount2),2) AS [B],
ROUND(SUM(Amount3),2) AS [C],
ROUND(SUM(Amount4),2) AS [D]
FROM tbl1 ) AS t
UNPIVOT
(
V FOR Value IN ([Total Amount], A, B, C, D)
) AS UP