According to research by the Welfare Footprint Project, both of these asks substantially decrease hours in pain experienced by farmed chickens,[2][3] decreasing chicken suffering by an estimated 30%–60%.[4][5]
According to estimates by Šimčikas,[6] corporate campaigns between 2015 and the end of 2018 will improve the welfare of 9 to 120 years of chicken life per dollar spent.
https://forum.effectivealtruism.org/topics/corporate-animal-welfare-campaigns