Starting Price and Compounding
The formula is target price = starting price × (1 + annual change)^years. Years are the exact number of days from the snapshot date to the target date divided by 365.25.
For example, the upper base assumption for 2030 applies 15% annual growth for about 4.219 years. The result is approximately $195.86 before any exchange, tax or holding costs.
This approach smooths the path for calculation. It does not imply a smooth market journey: the same ending price could follow severe drawdowns and recoveries.