Right data type

I have table like below

Data type for Sales and rent is varchar

My query is:

Select

Cast(Sale AS Bigint) AS Sales 

Cast(rent AS Bigint) AS Rents

From Table

Where Cast(Sale AS Bigint)  <> Cast(rent AS Bigint)

For some reason I am not getting table like below( I already tried to change bigint to int)

simam