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Past ACT/SAT scores might not carry as much weight you may surmise.
This also varies on what type of school you're applying to.
HOWEVER, the reasons as to WHY you took a 2-year break AND WHY you're choosing to return back to school -- best if you show enthusiasm in applying for their school specifically -- would be well worth mentioning in your application, if given the opportunity.
Without being absolutely sure, I would surmise that the original scores you received on both SAT/ACT would be a consideration but your GPA in the school you attended would be of great importance as well. I suggest that you write, call or visit a college or university and find out what their requirements are for transferring.