To calculate the principal after each year with a decrease of 4.5%, you can use the formula:
\[ \text{New Principal} = \text{Current Principal} \times (1 - \text{decrease rate}) \]
In this case, the decrease rate is 4.5%, which is equivalent to 0.045 in decimal form.
Year 0:
- Principal = $320,000.00
Year 1:
\[ \text{Principal} = 320,000 \times (1 - 0.045) = 320,000 \times 0.955 = 305,600 \]
Year 2:
\[ \text{Principal} = 305,600 \times (1 - 0.045) = 305,600 \times 0.955 = 291,536 \]
Year 3:
\[ \text{Principal} = 291,536 \times (1 - 0.045) = 291,536 \times 0.955 = 278,049.68 \]
Now, rounding to the nearest hundredth where applicable, we can complete the table:
| Year | Principal | |------|------------------| | 0 | $320,000.00 | | 1 | $305,600.00 | | 2 | $291,536.00 | | 3 | $278,049.68 |