Assume an investor purchased a six-month T-bill with a $10,000 par value for $9,000 and sold it

Question:

Assume an investor purchased a six-month T-bill with a $10,000 par value for $9,000 and sold it ninety days later for $9,100. What is the yield?

Par Value
Par value is the face value of a bond. Par value is important for a bond or fixed-income instrument because it determines its maturity value as well as the dollar value of coupon payments. The market price of a bond may be above or below par,...