Consider the function \( f(x)=x^{4} \). What is the percentage error occurred in computing \( f^{\prime}(3) \) approximately using the points \( x=3, x=3.25 \), and \( x=3.5 \) ? Use the three points forward difference formula \[ f^{\prime}\left(x_{i} ight) \approx \frac{-3 f\left(x_{i} ight)+4 f\left(x_{i+1} ight)-f\left(x_{i+2} ight)}{2 h} . \]