This StreamRay calculator was created using token data directly from StreamRay's website. On their site, they mention that 20 tokens is worth $2. This means that each token is worth $0.10 each. We can confirm this information by reviewing the membership costs and other token costs. 500 tokens can be purchased for $50, which breaks down to $0.10 per token once more.
The other part of this calculator finds the models take home rate. This calculation is a little trickier because it is based on a tiered payout structure. For instance, the first $5,000 worth of tokens earned is paid out at 32%, meaning that if a model brings in $5,000 worth of revenue, they will receive $1,600. Where it gets tricky is the breakdown of other tiers. The first $5,000 is paid out at 32%, the next $1,000 ($5,001 - $6,000) is paid at 50%, the following $4,000 ($6,001 - $10,000) is paid out at 60%, and anything above $10,001 is paid out at 70%. Keep in mind though, that if a model brings in $12,000 worth of revenue that they would be paid $5,900 and not $8,400. This is because the first $5,000 is paid out at 32%, or $1,600. The next $1,000 ($5,001-$6,000) is paid out at 50%, or simply $1,000 * 50% for $500. The third tier, $6,001 - $10,000 is paid out at 60%, so $4,000 * 60% = $2,400. Then the final $2,000 at 70% for $1,400. This gets us $1,600 + $500 + $2,400 + $1,400 = $5,900.