Does Windows' tasklist tool consider a "K" to be 1000 or 1024 bytes?
Solution 1:
Pretty much all of Windows and most major operating systems work with base-2 multiples so 1024-byte "K's". You can prove this with powershell where both KB and bytes can be shown under different output formats.
The only people who really use base-10 units for storage are the ones who have some vested interest in making their own numbers look better and everyone elses worse, just storage manufacturers.