Sam borrowed an amount of R44539 from a bank at a rate of 4.56% per year, that must be repaid after 13 years.

Sam will be using the sinking fund method to repay the loan. If Sam is going to invest an amount in an account at the end of every 3-month period, the first investment at the end of the first 3-month period, and if Sam earns interest on his investment at a rate of 8.639% per year, what does the loan cost Sam each year? (Give your answer rounded to 2 decimal places. If you think the answer is R1012.3456, type in 1012.35)

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Sam het R44539 geleen by 'n bank teen 'n rentekoers van 4.56% per jaar, en moet die bedrag terug betaal na 13 jaar. 

Sam gaan die delgingsfondsmetode gebruik om die lening terug te betaal. Indien Sam 'n bedrag gaan belê aan die einde van elke 3-maand periode, die eerste belegging aan die einde van die eerste 3-maand periode, en indien Sam rente verdien op sy belegging teen 'n koers van 8.639% per jaar, wat sal Sam se jaarlikse koste van die lening wees? (Gee jou antwoord afgerond tot 2 desimale syfers. As jy dink die antwoord is R1012.3456, tik in 1012.35)