All Treasury yields are at 1%.

I long a 30-yr treasury bond, coupon rate = 5%.

If yield increases by 2%, calculate the dollar change in value using the modified duration, and the change is called delta p1.

Calculate the exact dollar change by the exact new price - the original price, and the change is called delta p2.

What is delta p1 - delta p2? (Should be in units of dollars)