Float as data types and comparing variables from them

Question

I have following SQL code for stored procedure, and I am not sure why IF statement logic would not work.

When I run select statement for both variable (@state & @mostrecent), both values are same.

But, even though the values are same, it still inserts data.

Is there any syntax error?

How do I only indicate only "IF", not "ELSE" as well?

BEGIN

DECLARE @stage_total float,
        @mostrecent_total float;

set @stage_total  =
(
select sum(Current_Amount) from 
[dbo].[tblPayCorEarnings_Staging]
);

set @mostrecent_total =
(
select sum(Current_Amount) from 
[dbo].[tblPayCorEarnings_Prod]
where DateLoad in (select distinct top 1 DateLoad from [dbo].[tblPayCorEarnings_Prod] order by DateLoad desc)
);


IF (@stage_total <> @mostrecent_total)
begin
    begin
        insert into [dbo].[tblPayCorEarnings_Prod]
        select * from [dbo].[tblPayCorEarnings_Staging]
    end
end

END