Percent of one number to another

What percent of 98 is 49?

What percent of 65 is 13?

What percent of 16 is 2?

What percent of 50 is 21?

What percent of 4 is 24?

2.5 is what percent of 100?

8 is what percent of 200?

0.35 is what percent of 8?

90 is what percent of 96?

65 is what percent of 52?