On the other hand there are also other considerations, like equipment and supplies and war time economies. If we're going into the nitty gritty details, every action has an equal and opposite reaction - or in other words you can't go to war and expect nobody to die. The KNF has a majority of their forces in the Tau systems so that they can push into Leeds and end the war with a victory and put the 3 years of mucking about in the ice fields of Tau-31 behind them. With the GRN invasion that is just not going to happen, and some amount of that force will get to return home battered by the GRN, while another amount will actually remain in Newcastle as a rogue navy, working with the Bretonians against the GRN invaders.
All in all, I think it is quite clear that the KNF will lose a lot. If you want to talk details, I can get some developer buddies together and we can tell you exactly how much you are going to lose. But to be honest myself and the rest of us prefer to leave things like this ambiguous if I can.