A lot, probably.
WotC has become insanely profitable, completely dwarfing the rest of Hasbro.
https://www.wsj.com/articles/hasbro-activist-begins-proxy-fight-urges-dungeons-dragons-spinoff-11645056001
https://icv2.com/articles/news/view/47698/wotc-makes-more-money-hasbros-toy-business