Single albums are priced as western albums but ifpi rule is clear. That's why single albums chart as single sales in many countries. It is such disadvantage for kpop artists but companies care about profit with less effort not about charts. Same with eps. There is some time limit to be counted as one physical album. So regardless of revenue, it is downweighted by ifpi. It also effects overall career sales of artist because when you create equivalent, a physical single album only weighted as one third of studio album and an ep is counted as half. No matter how much it costs.
That's why butter past year didn't appear on album chart despite selling three million copies because they counted it as single. Downweighting it so much.
