This is really a complicated thing to calculate , and I am shocked that how did you calculate the percentage of the cryptocureency user .
Here in my country , every person is entering in this field to make a descent amount of the earnings but they don't want enter in this field fully .
Everyone talking about the Bitcoin and want hold then sell at high rate ( after increase in price ) . So I am thinking that not all the people are in cryptocurrency , only few of them are seriously working in every manner and other are just passing his time .
In my own community nd friends circle , only 6% people are in the Bitcoin and only 1% of them are using Bitcoin with altcoins ( so here you can easily understood about it , that what probability of the % of users in.this field ) .
You can usually take a first cut at it, and get I reckon within 1/2 and order of magnitude either way
Yeah , I understand the basic but still this is complicated because in every place different different type of people are and having different different type of thinking for particular things , so making calculation according to our own community and then compare it with the other commitments , and saying that the percentage of the user for that particular thing ( here matter of cryptocurrency ) will be same , then it will not be exact numbering to calculate the percentage of cryptocurrency user , so overall it will changed into Average estimation for all type of the community .
( Even here in my friend Circle I explained them to work with virtual money ,.which is not possible for everyone because not every people want help , but only few like us )