Convert a numeric column with number eg.(-1222222) to two float column with two decimal places eg (-12222.22)
Something like this will do:

with data as 
(
select -1222222 as foo 
union
select 0
union 
select -19
union 
select 21123021
)
select cast(cast(foo as decimal)/100 as decimal(10,2))
from data;


You can also use format(foo,'N2') and a million other ways.