<prompt> Human: Im currently employed as a temp for the summer and will be going back to school in the fall. The company I work for automatically deposits about 20 of my paycheck into a 401K savings plan. Being a lazy 19 yo, I forgot to opt out of this and will have about 40 in savings for retirement. Out of curiosity, how much money will accrue in interest from this small investment by the time Im 70?  <response>: I think most 401k plans will force you to take the money out of the account if you leave the job and its worth less than a 1000. So youll probably just get a check. 