If DRAGON BALL: Sparking! ZERO generated the same gross revenue on the Epic Games Store, Spike Chunsoft Co., Ltd. would keep approximately $85,746,340 - that's $10,904,213 more than on Steam.
At this revenue level, Epic's concrete platform fee would be $11,556,319. 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 $68,111,862.
Note: This is a hypothetical comparison. Actual sales volumes differ significantly between platforms, and Steam's larger user base typically drives substantially higher sales.