Final answer:
To calculate the new value of the building after a 4.5% increase, multiply the current value by 1 plus the percentage increase.
Step-by-step explanation:
To calculate the new value of the building after a 4.5% increase, we need to multiply the current value by 1 plus the percentage increase.
The increase can be calculated as follows:
New value = Current value + (Current value * Percentage increase)
Substituting the given values, we get:
New value = 281000 + (281000 * 0.045)
By solving this equation, the new value of the building will be $293045.