From Fallen London Wiki

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If you can see the level of awakening you have, and the amount of cp you have toward the next level, you can calculate how many total cp you have. To reach each level of awakening, you need a number of cp equivalent to the level you’re trying to reach. So for example: it takes 7 cp to get to level 7 of awakening. So you add 1+2+3+4 etc. for every level you’ve reached, and then add the extra cp you have toward the next level. For example, if I’ve reached level 12 Awakening, and I have 3 more cp, I add 1+2+3+4+5+6+7+8+9+10+11+12 plus the 3 extra to get 81 total cp. I’m sure the program linked to in the article is a faster, more efficient way to calculate this, but I’m not the most computer savvy, and this way works for me. Someone please let me know if I’ve made a mistake or if there’s a more efficient way to find it other than the program on github.