Americans are funding their retirement accounts at record rates.
But figuring out how much your monthly contributions will be worth in a few decades can be confusing.
As a rule of thumb, most financial advisors suggest that you save 10% to 15% of your salary. But if your goal is to get to $1 million, the percentage you need to invest will vary drastically based on how old you are when you start.
Watch this video to find out how to make it that happen.
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Disclosure: NBCUniversal and Comcast Ventures are investors in Acorns.