🐛 Zeni calc for remaining HP% appears to have a typo

[almuth150]

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OS / platform the server is running (if known)

Branch affected by issue

base

Steps to reproduce

Take pictures of mobs with the soultrapper, at low and high HP % remaining

Expected behavior

https://github.com/LandSandBoat/server/blob/base/scripts/globals/znm.lua#L288 there appears to be a missing set of brackets here because there's currently a useless * 1 multiplier. I'm not sure what it's supposed to be, but as it is now, getting a mob to 1% HP yields only +16.5 zeni, rather than some kind of multiplier. Brackets around the added parts would yield *17.5 at 1% remaining.