whats the percent of change in the number of voters who approve of the senator’s performance, and identify it as an increase or decrease.

Question

Last year a poll of 1,000 voters conducted by the staff of Senator Chun found that 445 people approved of the job the senator was doing. This year, a new poll of 1,000 voters shows that 225 people approve of the senator’s performance. Find the percent of change in the number of voters who approve of the senator’s performance, and identify it as an increase or decrease.

Answer 1

445 -- 225 = 220 and so 220/1000 have changed their minds

or 22%