Don't forget about the time New n' Tasty was free on PS+. OWI would have been given a sum for that promotion too. Whether this would have been more or less than regular sales during that period, who knows. But those kind of promotions seem to bank heavily on increasing the audience/target market, sometimes at the expense of short term profit.
Seems to work best when a sequel is on the cards regardless, so more people are familiar with the franchise and enjoyed it enough to buy second time round. By virtue of taking that promotion, in my opinion OWI were investing in the next game from the get go. Seems fair to say the expected profits for the next game (now known to be an Exoddus remake) are in excess of New n' Tasty's due to this greater market.
I suppose the question isn't so much 'did New n' Tasty make enough to fund AEHD?', as it is 'Did New n' Tasty under perform so badly that we should change our plans and not make another game?'
I'm confident OWI would be able to fund another game
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But everything takes time to get off the ground