Why is the value in 57days $24,785

I can't calculate it again.

1) You (first investor) purchased a $25,000,91-day Province of Newfoundland Treasury bill at a price that would yield you a 4.48% rate of return if the T-bill is held until maturity. Thirtyfour days later, you sold the T-bill through your broker to someone (second investor) for $24,785. a) What price did you pay for the T-bill? P=(1+0.044836591)250005,4,723.85 =24.723.85 29723 b) What rate of return did you (first investor) realize during your holding period (\% to two decimals)? (Hint: answer is not 4.48%.)