what is 15%of 334
15% means 15/100, so 15% of 334 is (15/100)*334
$$\left({\frac{{\mathtt{15}}}{{\mathtt{100}}}}\right){\mathtt{\,\times\,}}{\mathtt{334}} = {\frac{{\mathtt{501}}}{{\mathtt{10}}}} = {\mathtt{50.1}}$$