PLEASE HELP!!!
Last year, a poll of 1,000 voters conducted by the staff of Senator Chun found that 522 people approved the job the senator was doing. This year, a new poll of 1,000 voters showed that 423 people approve of the senator's performance. Find the percent of change in the number of voters who approve of the senators performance and identify it as an increase or decrease.

Question

PLEASE HELP!!!
Last year, a poll of 1,000 voters conducted by the staff of Senator Chun found that 522 people approved the job the senator was doing. This year, a new poll of 1,000 voters showed that 423 people approve of the senator's performance. Find the percent of change in the number of voters who approve of the senators performance and identify it as an increase or decrease.