Hi. Person who knows very little about either of these. Where to start? Wikipedia? Not Wikipedia?Consequentialism and deontology answer your question in opposite ways.
Don't overthink it. Consequentialism: "the ends justify the means." Deontology: "It's the principle of the thing." Consequentially: it's okay that "today's crumbs are yesterday's loaf" because a loaf is a loaf. Deontologically: It's not okay that "today's crumbs are yesterday's loaf" because crumbs are crumbs.
Or oversimply. Deontology is about rules. You've got your 10 commandments or your categorical imperative or your wiccan rede or... and if you do what your rules say to do you're doing the right thing. This can get silly. Consequentialism is about results, but isn't quite the same as utilitarianism; the Libertarian what's-good-for-me-is-good school of ethics is consequentialist as well. This gets silly too, but I'm not linking to trolly problems or Ayn Rand because I like you guys.Don't overthink it.