if thats with party buff, you could be a little bit higher, but overall its not to bad.
as for pots, i mathed it out since pre-3.0, but it used to be roughly 10% dmg boost while it was active.
as for the food, your best bet is just to check how much theoretical strength you gain via the stat weights, but if i had to guess, most food add around 20 dps.
