SIBR1X Walkthrough

Assuming even advertising levels are 0,2,4,6 etc. and odd levels are 1,3,5 etc. and positive numbers means number of extra customers gained (on top of the base 2).

0 starts at +1 for one shift (morning, but not evening) and then doubles for a 2 shift day to +2 (both morning and evening). lvl1 keeps the +1 on a one-day shift, but a 2 day shift is the doubled number with an additional one added to it to make it +3.

So all even levels take the next number up from the past even number for single shift days. 0->+1, 2->+2, 4->+4, 6->+5 (I don't know why + 3 was missed out; my guess is because it happens at lvl 4, one level above what you can make the girl at.) The double shift days on 'even levels' add double awareness. 0->+2, 2->+4, 4->+8, 6->+10.

Odds have the same single shifts as the previous even, but double shifts are (x2 + 1) 1->3, 3->+5, 5->+9 etc.

Sorry if this is confusing and more complicated than it actually is.

Number of extra customers gained per day with advertising level and while working in either Morning or Evening (1 shift), and in both Morning and Evening (2 shifts)

lvl 0: 1 shift = +1
2 shifts = +2

lvl 1: 1 shift = +1
2 shifts = +3

lvl 2: 1 shift = +2
2 shifts = +4

lvl 3: 1 shift = + 2
2 shifts = +5

lvl 4: 1 shift = +4
2 shifts = +8

lvl 5: 1 shift = +4
2 shifts = +9

lvl 6: 1 shift = +5
2 shifts = +10

lvl 7: 1 shift = +5
2 shifts = +11

lvl 8: 1 shift = +6
2 shifts = +12

lvl 9: 1 shift = +6
2 shifts = +13

I think the equation is this:

5exp + advertising level (in exp)

For example, a girl with level 7 advertising doing one shift will earn 5 xp + 7 xp = 12xp. The same girl advertising both shifts will gain 2 x 12exp = 24 exp.