You started to plan for your retirement 2 years ago by investing into a individual retirement account (IRA). You deposited $2,520 dollars over the two year period and your money grew to $2,850 over that same period. Determine, by what percent, did your money grow by for the two year period. Round your answer to the nearest percent. a. 1.13% c. 13% b. 1.3% d. 130%