Suppose $s=0\mathrm{.}18,$ marginal product of capital $=1,440,$ effective labour $=12,000$ units, $n=3\mathrm{.}1\%,g=1\mathrm{.}1\%$ and $=7\mathrm{.}8\%,$ we can conclude that the economy is on its golden rule capital per effective labour.