cj, thanks. I think it is fair to said that if you save as much as you are spending then that does indeed qualify as 50%.
If you spend 50$ then you save 50$ under that statement, hence 50% of the cost reduction is thanks to the deal with AstraZeneca and hence AstraZeneca , no matter how the allow PPHM to save the 50%, is contributing it directly or indirectly.