Ok let's see if I got it:

Wind direction = 165
Wind velocity = 10
True course = 250
Wind Correction = -6

Using the E6B I got

TC(-L/+R)WCA = TH
250-6= 244

TH(-E/+W)VAR = MH
I'm flying from KTPL - KAQO so it's -6 for going to East (By looking at the sectional chart)
244-6=238

MH(+/-)DEV=CH

What's a deviation?