If you chose to use a calculator it is quite simple.
$${\mathtt{0.3}}{\mathtt{\,\times\,}}{\mathtt{500}} = {\mathtt{150}}$$
Thus 30% of 500 is 150.
If you chose to use a calculator it is quite simple.
$${\mathtt{0.3}}{\mathtt{\,\times\,}}{\mathtt{500}} = {\mathtt{150}}$$
Thus 30% of 500 is 150.