Shamin Jewelers sells diamond necklaces for $409.00 less 9%. True Value Jewelers offers the same necklace for $500.00 less 28%,17%. What addtional rate of discount must Shamin offer to mest the competitor's price? The addikional rate of discount that Shamin Jewelers mest offer to meet the competitor's price is (Round to two decimal places as needed Round all intermediate values to six decimal places as needed)