Pricing (cost) of Salesforce Customer Community and Partner Community?

Found this regarding Salesforce Communities Pricing -

However, one way Salesforce bills for Communities is by the log-in. If you have a modest 200 “unique” partner log-ins per month, the list price for Salesforce Communities is $30,000 per year. As the number of log-ins increases, so does the price. If you have 5,000 log-ins per month, the price is $420,000 per year. If you have 20,000 log-ins per month, the price balloons to $1.5 million per year.

Which means:

if you have 200 unique partner login per month, it would cost $150 per user per year.

For 5000 unique logins per month, cost is $84 per user per year.

For 20,000 unique logins per month, cost is $75 per user per year.