What is the most appropriate literal translation of 赚钱
赚钱 has multiple context in mandarin.

工作赚钱 ； work for living

做生意赚钱 ： making/earning a living from the trade

这生意很赚钱 ： the business is profitable

买一送二， 这次赚了 ： buy 1 free 2, what a gain.

So which context you are referring to ? 

There are few more meaning as describe by zdnet on 赚, which carry specially meaning in various literature.