To compute for the interest expense for the year, the formula that we will be using would be the I = Prt
 Where:
 I = interest
 P = principal = $198,000
 r = rate = 12%
 t = time = 2/12; only two months since Pita Pit only borrowed on November and the accounting period ends at December.
  
 Computation:
 I = Prt
 = 198,000 x .12 x 2/12
 = $3960