SQL - ROLLUP Data

I would like to generate the following result,
For PlanCode = P1
RiskLabel               Amount              Risk
---------------              -------------              -------
Low                          10                       1
Medum                     0                        2
High                          0                        3


For PlanCode = P2
RiskLabel               Amount              Risk
---------------              -------------              -------
Low                           0                       1
Medum                    20                      2
High                         70                      3


I am not sure how to do that based the following data I have
Can anyone help me on this?

IF OBJECT_ID('tempdb..#investment') IS NOT NULL
      DROP TABLE #investment;

IF OBJECT_ID('tempdb..#Fund') IS NOT NULL
      DROP TABLE #Fund;

IF OBJECT_ID('tempdb..#Risk') IS NOT NULL
      DROP TABLE #Risk;

CREATE TABLE #investment
(
    InvestmentCode varchar(50) NOT NULL,
    PlanCode varchar(50) NOT NULL,
    FundCode varchar(50) NOT NULL,
    Amount int NOT NULL
)
go

INSERT INTO #investment
VALUES
('123', 'P1', 'F1', 10),
('456', 'P2', 'F2', 20),
('789', 'P2', 'F3', 30),
('321', 'P2', 'F3', 40)

GO

CREATE TABLE #Fund
(
    FundCode varchar(50) NOT NULL,
    Risk int NOT NULL
)
go

INSERT INTO #Fund
VALUES
('F1', 1),
('F2', 2),
('F3', 3)

GO

CREATE TABLE #Risk
(
    RiskLabel varchar(50) NOT NULL,
    Risk int NOT NULL
)
go

INSERT INTO #Risk
VALUES
('Low', 1),
('Medium', 2),
('High', 3)

GO
Select a.InvestmentCode, a.PlanCode, a.FundCode,  b.Risk,  SUM(a.Amount) As Total from #investment a
inner join #Fund b on a.FundCode = b.FundCode
Group By b.Risk, a.InvestmentCode, a.PlanCode, a.FundCode  with ROLLUP