I've been wondering for a while how big are damage bonuses in term of percentage but after doing a bit of tests in the guild training halls that damage bonuses seem to be fixed by a rather constant number.
For sealed/brandish line swords every low bonus seems to add 20 damage on average with the exception of the levi and flourish which seem to get 12 instead of 20 (despite the difference between a 5* brandish and levi is 7 damage).
when it comes to special damage bonus (piercing/shadow/elemental) it seems to be a solid 61 damage for all swords and seems to be independent from all other damage bonuses (tested it with the wraith cloak damage bonus)
Overall brandishes seem to get the advantage in damage bonus despite only dealing 7 more damage than the levi and 50 less damage than heavy type weapons
As for gun it seem to vary more for every low damage bonus 5* antiguas and blitz seem to get 3 additional damage while vailance get 6 and every other gun seems to get 10
Thing also get a little weird with the special damage bonuses heavier guns get the same 61 damage bonus as swords but for alchemers and polaris it seems to drop the low damage bonus to 6 instead of 10. Blitz and antiguas get and addition 49 damage and also there damage bonus doulble from 3 to 6.
Here blitz needle and antiguas have the main advantage because thers special damage bonuses are much bigger in proportion to there base damage (80% damage increase per bullet compare to the 47% for most other guns). And on that note guns in general get a larger special damage bonus than swords giving them an advantage.
Over all this seems a unbalance between guns and sword and even between guns themselve but over all this lead me to the may question of my thread.
How are damage bonus determined over all? Is it a predetermined fixed amount for all weapons of or weapons of a similar type? Or are the algorithms for weapon damages more complex than that?
Note weapon used in this short study: acheron,GF,DA,Volt edge,BtB, Rocket hammer,Levi, Polaris, Nova driver, Blitz, Sentenza, Callahan, Valiance
Note: didn't have enough bombs to include them and may make this into a suggestion later
We already figured it out! Each level of damage bonus gives us a 4% increase in damage, though this is before defence is applied, however. The increase in damage actually inflicted is often greater than 4% since defence is (most often) merely subtractive.
Bear in mind that the bonuses add together, rather than being applied after each other. For example, two units of damage bonus will give a damage multiplier of 1+(0.04*2) rather than 1.04*1.04.