How do you Express 6 month to percentage of 2 years?

Oh, dude, it's like this: to express 6 months as a percentage of 2 years, you divide 6 by 24 (because there are 12 months in a year, so 2 years is 24 months total), which gives you 0.25. Then you multiply that by 100 to get the percentage, which is 25%. So, yeah, 6 months is 25% of 2 years. Easy peasy, right?