Tom Holland is reportedly on track to exceed $100 million in earnings for “Spider-Man: Brand New Day.” Multiple sources allegedly “with knowledge” of the actor’s deal with Sony Pictures and Marvel Studios tell the Wrap that Holland, 30, had a base salary of “at least” $20 million for his starring role up front. The base sum is said to be $10 million more than he earned to play Peter Parker for 2021’s “Spider-Man: No Way Home.” Additionally, the “Odyssey” actor scored the possibility of upwards of $100 million in backend bonuses. But that’s not all. Apparently, Holland’s backend bonus isn’t capped — meaning there’s no limit to what he may…