how to find epi rates?

Can someone show me HOW to calculate these rates? thanks!!

Diabetes has been postulated to be both a risk factor and a consequence of pancreatic cancer, but the degree of risk and associated clinical factors remain unclear. Overall, prior data suggest that diabetes may be a marker for pancreatic cancer in some individuals and a risk factor for others. We conducted the current analyses as part of a large, population-based case-control study in the San Francisco Bay Area to examine the relationship between diabetes and pancreatic cancer with particular attention to duration of diabetes and treatment requirements.

Cases were individuals with newly diagnosed pancreatic cancer identified by the Northern California Cancer Center between 1995 and 1999 in the San Francisco Bay Area using rapid case ascertainment. Control participants were selected from the target population using random-digit dial and were frequency matched to cases by sex and age within 5-year categories. Sixty-seven percent of eligible cases and 67% of eligible controls completed an in person interview and answered questions in standardized questionnaires. Potential confounders that were considered included race, adult body-mass index, physical activity, cigarette smoking, and alcohol consumption.

Five hundred thirty-two cases and 1,701 control participants completed the interview and were included in the final analysis. 68 of the cases and 150 of the controls reported a history of diabetes. Sex, body mass index, and family history of diabetes were similarly distributed among cases and controls with diabetes.

questions:

1)Calculate the proportion of diabetes in the cases as a percent

2)Calculate the proportion of diabetes in the controls as a percent

3)Calculate the odds ratio (XX.XX) based on the cases and controls

4)Based on the study results, how would individuals and health care professionals benefit from the study results?

If some can show HOW they calculated the rates, it would be most helpful- Thanks!