Julie invested $148,000 in a simple interest account. after 12 years and no additional deposits or withdrawals, the account balance was $210,160. find the interest rate for the account. enter the percent with the percent symbol. if the percent is not a whole value, enter it as a decimal where the last digit is not zero and there is a zero before the decimal point for values less than 1. for example, if the answer is .35%, 0.35% should be entered. round the percent to the nearest thousandth of a percent if needed.