how to solve this type of questions?

17) Complete the following zero-coupon amortization schedule. T (Periods) 1 Beginning Price $839.62 Interest Ending Earned (6%) Price $890.00 $53.40 $1,000.00 2 3 $943.40 Answer: T (Periods) 1 2 Beginning Price $839.62 $890.00 |$943.40 Interest Ending Earned (6%) Price $50.38 $890.00 $53.40 $943.40 $56.60 $1,000.00 3 3