IPA: /ˈprɒfɪtəblnəs/
KK: /ˈprɒfɪtəblnəs/
The quality of being able to make a profit or be useful; it refers to how beneficial something is in terms of financial gain or usefulness.
The profitableness of the new business strategy was evident in the increased sales.
Profitableness → It is formed from "profit" (from Old French *profit*, meaning benefit or gain) and "-able" (meaning capable of) and "-ness" (meaning the state of). The word "profitableness" refers to the state of being capable of yielding a profit or benefit.
Think of 'profit' as a benefit and remember that 'profitableness' means the state of being able to provide that benefit.