How fast do the Dragons Grow?

Well I know many of you are curious about this.. So this is what I have devised..

Month 1 == 20%
Month 2 == 30%
Month 3 == 40%
Month 4 == 50%
Month 5 == 55%
Month 6 == 60%
Month 7 == 70%
Month 8 == 75%
Month 9 == 80%
Month 10 = 85%
Month 11 = 90%
Month 12 = 95%
Month 13 = 100%


So for example....

Rikath's full size is 11ft

At birth she would have been about 10% of her full size.. Meaning she is 1.1ft.. Quite small..

At 5 months old she be about 6ft in length..

And so forth.. For those who don't know how to do this.. it's simple..

Enter in the full size.. so for Rikath

11

Divide it by the percentage of the month you're in. So say month 7 which is 70%..

11/70%

you should then have the answer..

it should end up something like this if your the same size as Rikath

11/70% = 7.7

So she would be 7.7ft long..

[correct me if I am wrong those of you math wizzes who are better than I am..]