If DRAGON BALL FighterZ generated the same gross revenue on the Epic Games Store, Arc System Works would keep approximately $84,296,181 - that's $10,772,380 more than on Steam.
At this revenue level, Epic's concrete platform fee would be $11,358,570. 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 $66,958,326.
Note: This is a hypothetical comparison. Actual sales volumes differ significantly between platforms, and Steam's larger user base typically drives substantially higher sales.