Profit Or Profiteering: Are Covid Vaccines Overpriced?

What is the actual cost of manufacturing Covid vaccines? Are Covid vaccines presently over-priced? How much are the 'input costs'? How much are royalty prices and why is one vaccine more expensive than the other? Why is Covaxin as priced in private facilities now among the most expensive vaccines in the world? Ultimately, pricing lies at the heart of vaccine distribution and equity, not just in India but around the world, particularly in the present context.