The phrase "to change the outcome" means to alter or modify the result or consequence of something, typically by taking action or making different choices. Full definition
But party officials say the ruling does not change the outcome of the leadership vote. (nystateofpolitics.com)
If you don't use organic, it won't change the outcome of the recipe. (staceyhomemaker.com)
If we have any hope of changing outcomes for young people, we need to radically change our approach to primary and secondary schools. (nycleadershipacademy.org)