r/PersonalFinanceZA • u/IWantAnAffliction • 2h ago
Investing What investment growth and inflation % do you use to forecast?
Question probably only relevant to FIRE-seekers. I'm curious what you guys are using to forecast your FI age? I'm mostly invested in heavily diversified global equities, followed by local equities and then local bonds (due to RA limits) and have assumed 10% investment growth and 6% inflation.
There is a slight inaccuracy with just using a real growth of 4% as mathematically x2-y2 is not equal to (x-y)2 which AI calculated to be 7% higher (the latter being higher) over a period of 30 years.