**9857.98**

**Working**

\[
\text{MYR} = P \times \frac{r}{1 - (1 + r)^{-n}}
\]

with \(P = 50000\), \(r = 0.0877\), \(n = 7\).

\[
(1.0877)^7 = 1.801208134919
\]

\[
(1.0877)^{-7} = 0.55518292451
\]

\[
1 - (1.0877)^{-7} = 0.44481707549
\]

\[
\frac{0.0877}{0.44481707549} = 0.197159697
\]

\[
50000 \times 0.197159697 = 9857.98485 \approx 9857.98
\]

(Equivalent form \(P \times r(1+r)^n / [(1+r)^n - 1]\) yields the identical result.)

**Controlling authority:** s 109E of the *Income Tax Assessment Act 1936*.