100 iu of water (1ml or 1 cc) in the vial will give you:
15iu of human growth hormone - somatropin - per 100iu of the mix.
or
1.5 iu of human growth hormone - somatropin - per 10iu of the mix
200iu of water (1ml or 2cc) in the vial will give you
15 iu of human growth hormone - somatropin - per 200iu of the mix
or
7.5iu of human growth hormone - somatropin - per 100 iu of the mix
or
.75 iu of human growth hormone - somatropin - per 10iu of the mix