Well, OK then. If it's bytes, what do you want to display? Kilobytes is derived by dividing the number of bytes by 1024 because that's how many bytes makes up a kilobyte. If you want megabytes then you divide by 1024 again. Same again for gigabytes.

Just apply the business rules and logic to get the number to what you want for display purposes. Or, better still, leave it as is and let the front-end handle formatting.