can someone help me with number 135?

so from accidental deaths we have
30 from falls
47 from fires
200 from drowning
1950 car accidents
so the total of those is 30+47+200+1950, or 2227.
the ones that weren't car accidents will be 2227 - 1950, or 277.
if we take 2227 to be the 100%, how much is 277 off of it in percentage?
[tex] \bf \begin{array}{ccll}
amount&\%\\
\cline{1-2}
2227&100\\
277&x
\end{array}\implies \cfrac{2227}{277}=\cfrac{100}{x}\implies x=\cfrac{277\cdot 100}{2227}
\\\\\\
x\approx 12.4382577~\hspace{7em}\stackrel{rounded~up}{x=12} [/tex]