Final answer:
The Fed raised its target by approximately 0.01 percentage points.
Step-by-step explanation:
The change in percentage points by the Fed can be calculated by subtracting the initial rate from the new rate. In this case, the initial rate is 2% and the new rate is 2.5%. So the change is 2.5% - 2% = 0.5%.
To calculate the approximate change by which the Fed raised its target, we can multiply the change in percentage points by the initial rate. In this case, the change is 0.5% and the initial rate is 2%. So the approximate change is 0.5% of 2%, which is 0.01.
Therefore, the Fed raised its target by approximately 0.01 percentage points.