Elemental Calcium In MCHA

Hey All,
I’ve just started taking Calcium Hydroxyapatite caps(MCHA) from Now Foods. I’m trying to figure out the elemental calcium content of Micro crystaline hydroxyapatite is, and it must be a secret, because google won’t tell me.

So, does anyone know what the elemental calcium content of this product is?
Thanks,
Comguy