How much torrent file has downloaded today

[amsharma9]

Is there a way to know how much a torrent download has happened, say, today or in last 24hours. The reason I want to know is because some torrents take days to download and I download them to memory, i.e. /dev/shm or /run/user/1001 on Ubuntu. At the end of the day I copy them back to the disk. If a file has downloaded, i.e. changed, then only I want to copy it to disk.