The portfolio you are asked to design should have a value of 20,000 dollars. But your investor has a strong view: They think we are going to see a uniform shift of the term structure within the next few days of 25 basis points. Specifically, they want you to implement a portfolio delta such that after an immediate 25 basis point increase, the portfolio would be worth approximately 22,000 dollars. Ignoringθ and gamma, What is the delta of the portfolio that would satisfy such an objective?