第十二章作业第九题

On March 1, Company Delta declares the rights offering that shareholders of record on March 7th will be granted one right for each common share held. 5 rights are required to buy1 new share at a subscription price of $24.50. On March 4th, during the cum rights period, the Delta Stock is trading at $ 27.7. The intrinsic  value for each rightis ?
请问怎么算这道题？