Six years ago, Westcoast Industries (WI) adopted a plan to expand its services next year. At the time the plan was adopted, WI set aside $150,000 in excess funds to be held for this purpose. As of today, that money has increased in value to $196,408. What rate of interest is the firm earning on these funds? Multiple Choice 4.60% 4.80% 5.60% 5.80% 6.90%