In the 1988 Olympics,Florence Griffin Joyer of the U.S.A won the women 100 meter run in 10.54 seconds. In 2000 Marion Jones also of the U.S.A won with a time of 10.75seconds.Find the percent of change in the winning times. Round to the nearest percent.

Question

markrijckenberg · Answer

The original question is wrong. Please read this first: http://sports.yahoo.com/news/top-10-women-olympic-100-meter-dashes-221200381--oly.html Winning time in 2000 was 10.75 seconds, not 19.7

markrijckenberg · Answer

To find the percentage of change, you need to divide the newest time in seconds by the older time in seconds, then multiply by 100.