How much is 5% of 7 billion. :/
Just use the calculator! That is what it is there for. Calculating.
$${\mathtt{7\,000\,000\,000}}{\mathtt{\,\times\,}}{\mathtt{0.05}} = {\mathtt{350\,000\,000}}$$
You literally could've just done this on a calculator. Don't waste your time on the forums when you can get an immediate answer with a calculator.
$${\mathtt{7\,000\,000\,000}}{\mathtt{\,\times\,}}\left({\frac{{\mathtt{5}}}{{\mathtt{100}}}}\right) = {\mathtt{350\,000\,000}}$$
^7billion ^5% ^Answer