The MoC was starting to purchase clantech from the Snow Ravens in 3146, so the percent might be larger.
With recent combat losses in the MoC and FWL, the Marians may have a smaller military than the four regiments bearing down on Alphard. The Canopians don't have to annihilate the MHAF. If they liberate all the slaves, there will be severe labor shortages leading to supply chain nightmares. If they slag the military factories, it will take years longer to significantly rebuild the material part of the MHAF. To make things even more fun, the Canopians could grab the germanium stockpiles and loot the banks for precious metals. While they're looting the banks, they could burn all the paper currency and wreck the computer systems. Economic depression could soon follow.