5408.22,5280.71,5152.67,5024.10,4894.99,4765.35,4635.16,4504.44,4373.17,4241.35,4108.99,3976.08,3842.61, This schedule is a balance of a debt I'm currently paying off or I guess would be called an amortization schedule. My payment is 150 each month. Can you tell me what the interest rate is and what the balance would be if I added an extra 100 to each payment? Thank you very much.