Grand Theft Auto IV... 100 million spent? (Cost of GTAIV)

[disolitude]

y0ungK!d said:
Grand Theft Auto 4 still wins even if it Shenmue was 70 million it's $90,466,842.90 with inflation. That's still less than 100 million so it was beaten if this is true.

How did you get this number and what years did you use?