Question about buff duration - Durationformula

[drmario]

Hi folks,

I have been trying to determine what is actually behind the "Durationformula" for spells to calculate the duration for levels 1-65. For some spells, it's pretty simple, for example:

- Ensnare: Buff Duration: 140 (14.0 minutes), Durationformula: "Level * 2 + 10" (durationformula 9).

With the above it's simple to figure out the spell duration for Ensnare at any character level.

However, with this spell, as an example:

- Snare: Buff Duration: 39 (3.9 minutes), Durationformula: "Duration * 3/5" (durationformula 2).

It's not easy (well, for me) to use this Durationformula and others to calculate duration by level.

I was hoping someone could shed some light into what "Duration * 3/5", "Duration / 2" etc. actually mean for determining the duration for the spells with those formulas at say, level 14, or whatever.

Thanks in advance.