Lionheart
Solid Ocelot
Devil May Cry 2.99[3]
Devil May Cry 2 1.97 [4]
Devil May Cry 3 1.3± [2] (4.3)†‡[5]
Devil May Cry 4 2.78‡[6]
DmC: Devil May Cry§ 1.1[2]‡ (0.79)‡[7]
http://devilmaycry.wikia.com/wiki/Devil_May_Cry_(series)
All the previous games sold better than the remake, and that's because the majority of us think that Classic DMC is simply better than DmC.
You can try ignoring this all you want, but no future DmC game will do as well as previous versions. So, Capcom should just give up on the reboot, lose NT, and give the series to devs who understand solid gameplay(best choice is Platinum games).
What makes you so sure? DMC3 didn't do that well either (a little bit more than DmC), probably because DMC2 was disapppointing to many people. Then DMC4 came along, and probably was disappointing, too. And lo and behold, you can see that DmC sold less, just like DMC3 did after DMC2. I think you're underappreciating the effect of the games themselves.