R2-D2 Number Crunch Unique: A few questions.

https://swgoh.gg/characters/r2-d2/
His synergy allies (rebel, droid, etc.) are said to gain 10% of R2s Health, Protection, Offense, and Potency.

1. Does this mean 10% of potency, so 10% of 33% = +3%? Or is it a flat +10% potency = 43%?
2. What does 10% of "offense" actually mean - which offensive stat gains 10%?
   R2 gains 10% max health for each Rebel ally.
3. I assume 10% is added to his unmodded base of 23,999, to give +2399 for each Rebel ally. For R2s Zeta, a synergistic ally gains 10% of R2s max health.. so is that 10% of the total (23,999 + 2399) = 1.1x26,398 = 29,038?

4.  ...other Droid, Galactic Republic, Rebel, and Resistance allies gain 10% of R2-D2's Max Protection, Offense, Max Health, and Potency.... Does a Rebel ally gain ALL of those, or only the one respective to being a Rebel (i.e. just Max Health)? The text does NOT say "respectively", but I know how unclear the text can be.   
   

Thanks!!