ATARMAxxing · SACE General Mathematics revision notes
Reducing the interest paid: payment frequency, extra payments, lump sums, offset accounts and rate changes
4.2 Models for borrowing
What this note covers
- The one idea behind every strategy
- Increasing the value of the payments
- Increasing the frequency of payments — and the trap inside it
- Paying a lump sum off the principal, and offset accounts
- Changing interest rates, and reducing the term directly
- Comparing strategies fairly, and judging reasonableness
- How this topic is examined in the SACE Stage 2 paper, and what separates a top answer
7 sections · 12 key terms & formulas · 6 common mistakes
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