\[
\text{MYR}
= \frac{\$50{,}000 \times 0.0877}{1-(1+0.0877)^{-7}}
= \$9{,}857.9849
\]

**Minimum yearly repayment: $9,857.98**

Controlling authority: **section 109E, particularly subsection 109E(5), of the Income Tax Assessment Act 1936 (Cth).**