If Path Of Wuxia generated the same gross revenue on the Epic Games Store, 香港商河洛互動娛樂股份有限公司 would keep approximately $19,655,732 - that's $3,505,960 more than on Steam.
At this revenue level, Epic's concrete platform fee would be $2,543,963. Epic charges 0% on the first $1 million in annual per-app revenue and then 12% on the remaining amount. On GOG (30% cut), the developer would earn approximately $15,539,787.
Note: This is a hypothetical comparison. Actual sales volumes differ significantly between platforms, and Steam's larger user base typically drives substantially higher sales.