$${\mathtt{68.2}}{\mathtt{\,\times\,}}{\mathtt{x}} = {\mathtt{30.69}}$$
$${\frac{{\mathtt{68.2}}{\mathtt{\,\times\,}}{\mathtt{x}}}{{\mathtt{68.2}}}} = {\frac{{\mathtt{30.69}}}{{\mathtt{68.2}}}}$$
$${\mathtt{x}} = {\mathtt{0.45}}$$
$${\mathtt{x}} = {\mathtt{0.45}}{\mathtt{\,\times\,}}{\mathtt{100}}$$
$${\mathtt{x}} = {\mathtt{45}}\%$$
.$${\mathtt{68.2}}{\mathtt{\,\times\,}}{\mathtt{x}} = {\mathtt{30.69}}$$
$${\frac{{\mathtt{68.2}}{\mathtt{\,\times\,}}{\mathtt{x}}}{{\mathtt{68.2}}}} = {\frac{{\mathtt{30.69}}}{{\mathtt{68.2}}}}$$
$${\mathtt{x}} = {\mathtt{0.45}}$$
$${\mathtt{x}} = {\mathtt{0.45}}{\mathtt{\,\times\,}}{\mathtt{100}}$$
$${\mathtt{x}} = {\mathtt{45}}\%$$