GBP needs to come up with this; $5M for JMM in one fight and if JMM wins, offer him $10M in another fight with the fights held at maximum of 144 lbs. (I assumed minimum of 135 lbs.). I think GBP tried but can't match the offer. GBP is a lesser promotional company compared to Top Rank.
I was already telling posters in here that GBP can't offer any fight to JMM that will produce the same amount of money and stature. GBP of course would want to match that offer but they can't.