I have created a sheet for entering in battle results such as:
It will tell you the overall percentage of your results and of your team and the 3 different neutrals.
I also hope to add an IPC loss and Gain based on units that were lost in battle so for example:
I lost 3 inf and 1 arm
you lost 5 inf and 1 fig
I lose 15 IPC worth of units you lost 25 so my battle gain is +10 ipc worth of units your loss is 10 ipc worth of units