Another curve, with equation \(y = f(x)\), has a single stationary point at the point \((p, q)\), where \(p\) and \(q\) are constants. This curve is transformed to a curve with equation

\(y = -3f\left(\frac{1}{4}(x + 8)\right).\)

For the transformed curve, find the coordinates of the stationary point, giving your answer in terms of \(p\) and \(q\).