Board Thread:Wiki Discussion/@comment-16047389-20140929144318/@comment-5264386-20140930130232

If the rate of change in build-up per second could be determined for each source of player-inflicted poison, it might just be possible to calculate the actual amount of build-up inflicted when the damage starts. I'd imagine the function would look something like: Build-up = (n*t) - Poison Resistance, where n is the build-up per second, and t is the time in seconds.

Granted, this is purely a hypothesis constructed in a few minutes of thinking without hard data, but it might be worth a shot if it could be accurately determined.