question about damage calculate on maim

could the mod "enemies take 14% increase physical damage" be equal to "players and allies get 14% more physical damage "?

or in other word

1.if player have a damage convert from physical to elemental, would the elemental damage get the 14% more physical damage before convert?

2.if player only use this and maim enemies, what is the total damage buff for player? (1+30%+14%)? 100% * 130% * 114%?

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1.if player have a damage convert from physical to elemental, would the elemental damage get the 14% more physical damage before convert?

Damage is applied after conversion, so no. Only the physical portion of the damage the target takes will be increased.

"

2.if player only use this and maim enemies, what is the total damage buff for player? (1+30%+14%)? 100% * 130% * 114%?

((skillDamage * incDMG) * moreDMG) * debuffs.
Ie. base skill damage * any increases from passive tree, gear and gems. The total sum of these is then multiplied by the more modifier. The total sum is then multiplied by any debuffs the target has.
Simplified, it will be 100% * 130% * 114%.