The number of students who attended Albany Medical College last year was 1000. This year, attendance has increased to 1350 students. What is this year's student population compared to last year's as a percentage?

First you have to subtract 1350-1000 to get 350. Then you have to make 350/1000 into a percent. First you have to turn it into a decimal. In the fraction 350/1000 can be reduced to 35/100. In decimal form it would be 0.35. In pecentage form it would be 35%. The percentage difference of the student population would be 35%.