\(g \propto \frac{M}{{{R^2}}}\),
\({v_e} \propto \sqrt {\frac{M}{R}} \) and \(U \propto \frac{M}{R}\)
If both mass and radius are increased by \(0.5\%\) then \({v_e}\) and \(U\) remains unchanged where as \(g\) decrease by \(0.5\%\).
$\left\{\frac{4 \pi^{2}}{G}=6 \times 10^{11} {N}^{-1} {m}^{-2} {kg}^{2}\right\}$