Other people? Had their repair costs triple. Why the gap?
Wipes and amount of damage taken.
The first night I did the Gree dailies on my sawbones including the heroic (all solo), used defensive cooldowns and CCs and my repair cost was 179 credit.
Last night I did the same dailies on her solo, without using defensive cooldowns or CC's, my repair cost was over 5,000 credits. I was also attacking more elites. First night I stuck with easy kills because I did not know if there were stealth spawns or not.
Now in operations I did HM TfB on my dps, her repair bills were over 100K, but it involved some new players and people playing alts in different roles and we had a few wipes.