So in math terms (this is my own math so hope its right, and it doesnt cover the tax cuts)
Dzeko - 15 mil fee + 7.5 for 2 years = 30 mil = 15 mil per year (Dzeko will retire here so no resale)
Morata (loan + buy) - 55 mil fee + 6 mil for 3 years = 24 per year
(Morata will be 30/31 at the end...