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A bond has a Duration (not Modified) of 4.2 years and is priced at 99.50. Its yield is 3%. How much will its price change if the yield increases to 3.3%? Use this data for the next 2 questions also. a.)Calculate its dvo1 at the original yield. b.) Use the dvoi to calculate how much the yield needs to change, and in which direction, in order for the price to rise to par