The officially released compressed zip files for windows went up 9 MB from 473 to 482 MB between the 0.45 to the 0.46 releases. My unzipped windows folders have a difference of right around 16 million bytes. There's going to be some difference between the unzipped versions due to the save files.
Having taken a moment to look through the various download links provided here, the workupload, wdho, and mixdrop ones are the right size. The gofile one seemed to be calculating the file size using storage device math rather than properly calculating its size, and the pixeldrain one just seems to think every file is about 5% bigger than it actually is. Do what you want with that information.