Translators are rewarded a portion of the sales of their translated edition based on a rate determined by the creator when they set translation permissions (80% / 50% / 20%).
Translators are also welcome to translate for free, if they simply wish to support the creators.
In this case, that portion of the translated version's sales will go back to the creator.
*Please be aware that translation rewards are linked to the wholesale price of the original work, and so may be affected by changes to the original work's price, and by sales and promotions.