Using the formula
A=P*(r(1+r)^n)/((1+r)^n-1)
Where
A=monthly payment
P=Loan amount =11,000-2,000= $9,000
r=annual interest rate/12 or interest rate per month =9.6/12 =0.8%=0.008
n= number of months 3 years=36 months
A=9,000*(0.008(1+0.008)^36)/((1+0.008)^36-1)
A=9,000*(0.010657)/(0.332229)
A=$288.695
A=$288.70