cruel bandit rewards, more or increased?

On cruel difficulty all 3 bandit lords grant you some extra damage/attack speed/cast speed. Are these bonuses 'more' ie multiplicative with other improvements or 'increase' ie additive with other increases?
To make the choice between 8% attack speed, 18% phys damage and 1 passive skill point somewhat fair, 'increase' would make a lot more sense, and I suspect these are 'increase' bonuses. If it were 18% more phys damage that would be more than twice as good than 8% more attack speed, and both of these would be much better than a passive skill point which will just get you an increase somewhere.
However, the wording in the reward seems to be carefully written so that you cannot conclude anything. It says something like 'you will get +18% phys damage'. The wiki doesn't specify either.

It's increased.