I think it's finance. I also study literature, which is similar to your situation. Economics depends on what kind. If it is theoretical knowledge, such as the basic course of economics, then mathematics seems to require less, but if it is other practical operations, it is definitely more difficult for liberal arts students to learn mathematics than for science students.
In short, both of them are based on mathematics, and it depends on interest. It is difficult to be interested, but easy to be interested. Personally, I think finance is easier.