Do we have data about how much the total of album sales in dollar or won not in copies?

Definitely sales should be measured in terms of total $$$ and not in terms of number of item sold

The true picture is the profit and loss. A group might have more revenue, but if a massive amount is spent on "marketing" then they not making much profit or even losing money.

Yes but now all groups sans BTS are similar in prices (index numbers show the profit too). BTS albums are so expensive and they also sell the most. If BTS were to sell the prices of the other Kpop groups albums nowadays they might have 10m sale for one album.

The only groups that sell expensive albums are BTS and Blackpink

while its not in the amount in dollars/won.

Hanteo does provide something called a physical record index which somehow combines sales alongside price, by i think weighing up sales for more expensive albums and weighing down sales for less expensive albums. (hanteo also combines all vers together btw).

Here was its ranking for 2022 albums.

it can be seen easily the affect price had for BTS since their record index is more than double #2.

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Quote from blossom9990

Where did they released the index number for these albums?

hanteo

There's the Hanteo Index, but I believe it's only 2022 onwards