Which of the following statements best describes a person’s accomplishments following the résumé writing guidelines?
a.
coordinated school’s student-body elections and reduced final ballot processing time by 30%
b.
my duties included organizing the student-body elections and processing ballots
c.
i was in charge of the school’s student-body elections and ballot processing
d.
processed a lot of ballots quicker than the previous year

a. Coordinated school’s student-body elections and reduced final ballot processing time by 30%

Out of these options, the first one is the one that suits a resume better. Although all the options are relatively similar, the first one not only explains what the accomplishment was, but it also gives a quantitative measurement of the improvement. This allows the employer to judge the accomplishment better, and makes your claim more credible.