We have that there are in total 272 people
for the first question:
[tex]\frac{50}{272}=0.1838\rightarrow18\text{ \%}[/tex]
for the second question
[tex]\frac{156}{272}=0.5735\rightarrow57\text{ \%}[/tex]
for the third one
[tex]\frac{66}{86}=0.7674\rightarrow77\text{ \%}[/tex]
for the fourth one:
[tex]\frac{86}{272}=0.316\rightarrow31\text{ \%}[/tex]
last one
[tex]\frac{50}{116}=0.43\rightarrow43\text{ \%}[/tex]
