PV Calculation

What is the present value of the principal amount of Dineth’s 8%, $10,000 semi-annual pay bond with 3 years remaining to maturity if similar bonds are yielding 6%?
A. $10,000.00.
The correct answer is: B. $8,374.84.
C. $12,400.00.
D. $8,560.98.
老师您好, 我用的financial calculator 这样计算： N=6, I/Y=6, PMT=400, FV=10000, 得到PV= -9016.54. 请问是哪里错了呢?