| Illustrative assumption | First year | Second year | Third year | Three-year premiums |
|---|---|---|---|---|
| No change in annual price | $600 | $600 | $600 | $1,800 |
| 10% increase at each renewal | $600 | $660 | $726 | $1,986 |
| 20% increase at each renewal | $600 | $720 | $864 | $2,184 |
Every amount in this table is hypothetical. The $600 first-year amount is invented, and the two percentage paths are stress tests, not an insurer’s expected increases or a statistical confidence range. They simply show how a different renewal price could affect the same starting budget.
The second increase applies to the new price, not the original $600. Under the 20% path, $720 multiplied by 1.20 produces $864 in the third year. Assuming three unchanged $600 premiums would understate that scenario by $384.
Repeat the calculation using an actual first-year quote and assumptions you want to test. Also ask what would happen if the premium changed by more than the illustrated amount. A scenario helps reveal a budget weakness; it does not put a ceiling on what an insurer may later offer.