Suppose on January 15, 2013, the US. Treasury issued a five-year inflation-indexed note with a coupon of 39 On the date of issue, the consumer price index CPI was 246. By January 15, 2018, the CPI had increased to 299. What principal and coupon payment was made on January 15, 2018? The CPl index appreciated by 1.21544. (Round to five decimal places.) The principal amount of the bond increased to $ 1215.44. (Round to the nearest cent.) The semi-annual coupon payment is (Round to the nearest cent.)