"Now, I'm going to guess that Momenta would have deducted from 'Gross Sales' the Cost of Revenue (55%) and the Admin charge(20.5%). "
First post but lurk here regularly.
If you deduct 75% of revenue for expenses and say MNTA gets just 45% of the remaining 25% of revenue, It will be closer to 11% of gross revenues. IMHO it is unbelievable that MNTA chooses some thing like 11% of gross sales in case of sole generic vs 10% royalty for multi generic case.
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