The yearly growth factor is (1 + assumed return) × (1 − annual fee). The calculation takes its twelfth root to use the same monthly factor all year. Money is added at each month end. Yearly displayed amounts are rounded half-up to cents after the calculation; balances between those points are not rounded to cents. This is an example using a constant rate.
Remember When You Need The Money.
Buying power is adjusted for the inflation rate you entered. The example leaves out taxes, changing returns, withdrawals, and the effects of returns arriving in a different order. A smooth line does not predict what will happen or tell you which investments are suitable.
How To Read The ResultRead the money balance and buying power separately. The entered rate is an assumption, not a forecast.