I am unable to calculate with my FX-300 ES PLUS Calculator the amount of 6.625474...the calculator gives me a different answer.

Would you please explain how to calculate this with that type of calculator, or perhaps how to break it down step by step so I can have the same answer as below 6.625474. I do not know how to do it. I just need to know how can I calculate that number from my calculator or using algebra. Please

j = 5.50% = 0.055, m = 12 0.055 = 0.004583..., C= 12 1 = m 12 2 12 12 = (1 +i) -1 = (1 + 0.004583...) N -1 = 0.027817... 12 x FV 0.027817... x 43, 000.00 In 1+ In PMT 6, 000.00 n= In (1 + 12) In (1 + 0.027817...) = 6.625474... rounding to the next payment = 7 payments payment 7 will be smaller than $6, 000.00