Not much more with Putty, but you should be able to record the data to a CSV file
If you have properly formatted the data from Arduino, which essentially means a new line every trip round the loop, you can simply paste the file into Excel and do the maths there.
If you have an older version of Excel, you can send the data thereto direct, and have real-time maths and graphs. This done with PLX-DAQ, a freebie macro. You might have a hard time doing this with bluetooth as I believe PLX will only look at a limited number of COM ports.
Another option is to write a PC program to rceive the data in place of PuTTY and then do whatever maths may be required. This Python-Arduino demo may be of interest.