Guild Wars 2

So, I decided to see the change in rewards from cashing out karma. First, note that this is purely theoretical. I am just taking other people’s work, some of my observations, and producing an estimate.
Some things I know:
- Before this update, 23,000 karma could get you 1g (buy orrian boxes, open, open all karma potions while having +95% bonus karma, repeat) source: http://www.reddit.com/r/Guildwars2/comments/1bs9ki/for_boredom_8071700_karma_spent_on_1774_lost/
- if you open all karma potions from these purchased boxes with +95% bonus karma, you got about 75% of the karma you spent back in the form of karma potions. (put in 23,000 karma, open boxes for 17,250 karma) source: me taking notes the last time I spent 1M karma, plus that reddit post agrees.

Based on this I can calculate some expected results:
- 0.75 return * 1.5 new karma bonus / 1.95 old karma bonus = 57.7% new karma return (put in 23k karma, open boxes for 13,269 karma)
- 23,000 + 17,250 + 12,938 + … = 92,000. This is about how much total karma you went through when you started with 23,000 karma (pre-patch)
- 23,000 + 14,145 + 8,699 + … = 54,364. This is how much total karma you will go through when you start with 23,000 karma (post-patch)
- 23,000 * 92,000 / 54,364 = 38,922. This is about how much karma you need to start with to get 1g in rewards from opening lost orrian boxes.

TLDR: now, 38,922 karma = 1g from buying lost orrian boxes