Hello Cubmaster Randy
I assume that there is no loss or gain in the other ranks (Bobcat, Wolf, Bear, Web I).
If your net this year is up 5 boys than your retention rate is over 100%. I don't know exactly how many boys you have so I can't tell you exactly what percentage. Take this year's number and divide by last year's number and multiy by 100. That's the retention rate. National averge is about 67 percent (I.E. one out of every three boys drop out of the program every year)!
If you can end up each year with a gain in boys you must be doing something right!