The means and medians are <em><u>not</u></em><em><u> </u></em> the same.
I'm Unsure, But Here's What I Found.
9.99×65=649.35
10.68×65=694.2
((10.68÷9.99)−1)×100=6.9%
Set up proportion 170/180=x/1 than cross multiply 170x=180 divide both sides by 170 answer 0.944 so 94% remains