Some helpful degrees/sacrifices:
D1 = nothing
D20 = 100 upgrades (0.06 in cash investment but 100 upgrades should cover this)
D20 (dart) = nothing except an extra crossbow master (if you don't get 20 make sure you crosspath all darts)
D40 = 100 upgrades and 1.1 cash
D40 = 1.6 in cash
D60 = 100 upgrades and 2.85 cash (minus any pops or money generated)
D80 = 100U, 3C, and ~9,200,000 pops OR 2,300,000 money generated
D91 = Max everything except T5s and Geraldo Totems
D100 = Same as 91 but with 7 extra t5s
D100 = Same as 91 but with 20 Geraldo totems