If you mean the sentence which says: Global cancer prevalence has risen from 0.54 percent to 0.64 percent since 1990 then it 0.64% (or "64 times in ten th

If you mean the sentence which says: Global cancer prevalence has risen from 0.54 percent to 0.64 percent since 1990 then it 0.64% (or "64 times in ten thousand"); not 64% (or "64 times in one hundred") this is kind of similar to the famous problem of 0.02 cents (which is not 2 cents, but two hundredths of a cent) which gives verizon such difficulties in explaining correctly [1]. 1. http://verizonmath.blogspot.com/2006/12/verizon-doesnt-know-dollars-from-cents.html http://verizonmath.blogspot.com/2006/12/verizon-doesnt-know-...