Though just to make sure I don't misunderstand it, getting axed means publisher telling the creator "sales are too low, we'll stop publishing your work"?
It depends.
Sure, the consensus in this kind of situation is that the manga got "Axed", with "Axed" meaning "It got cut short by the publisher because of sales", but the reality is that there are many reasons for a manga to suddenly end, ranging from the author's health, to them simply getting bored with their story, to problems with their editors, and many more.
Hell, we recently saw the case of Schwinn's Hanamonogatari (Yuri manga) which got axed 3 vols in, despite vol 1 doing so well, that it reached the top list of Amazon's bestseller.
The reception of vol 1 was on the level of a popular shounen, and what did the publisher do?
Backstab the manga giving it absolutely 0 ADVERTISEMENT, not even on their official Twitter account, hell, their account wasn't even following the mangaka's, destroying all momentum by vol 2, and killing it by vol 3.
And we know all this because the author herself came out on Twitter to talk about the situation in wake of the support she was getting not only from Japanese fans, but also overseas, when the announcement of vol 3 being the final one came out.
So no, it's not always about money.