Turns the number to it actual number after the changes

[Rexiler1 (Rexiler)]

The image explains it

like, the number was 12
and got buffed to 24… a few seconds later make it to 12 back [actual number]

hope you understand what I meant :

[black1shadow1048 (Darve)]

You can revert the operation itself for example you get the buffed number by doing this:
Buff.Value = Buff.Value + 1

and if you want to return it back just do this:
Buff.Value = Buff.Value - 1

for your situation I would do this:
dmgValue.Value = dmgValue.Value / math.min(dmgtoBuff)

If for some reason the number in math.min() is random you can save the damage value before being buffed in a variable and use it return the damage to it’s actual number

[Rexiler1 (Rexiler)]

understanable, why I didnt try this at first place