How to Calculate NPK ratios when combined??

Hey guys hows it going, well i've been at it for awhile with no real luck at it so I thought I would shoot a quick question regarding npk ratios since I am coming up with some weird numbers I am thinking... So ill just say how ive been coming up with the NPK numbers

And I am trying to get as close to the 3 - 1 - 2 veg NPK as possible....

Modified Lucas Fomula:
16ml micro: 5 - 0 - 1
8ml bloom: 0 - 5 - 4
1ml cali magic: 1 - 0 - 0
.2ml floralicious Plus: 2 - .8 - .2
1ml Armor Si: 0 - 0 - 4
(All ml for one gallon increments)

Then am I right in saying you do this next:

Micro: 16*5=80, 16*0=0, 16*1=16
Bloom: 8*0=0, 8*5=40, 8*4= 32
Cali Magic: 1*1=1, 1*0=0, 1*0=0
Floralicious Plus: 0.2*2=0.4, 0.2*0.8=0.16, 0.2*0.2= 0.04
Armor SI: 1*0=0, 1*0=0, 1*4=4

Then Just add them all Up?
81.4 - 40.16 - 52.04

Then add up the ML and divide the NPK i got by the ML?
16+8+1+.2+1= 26.2

81.4 - 40.16 - 52.04 (divided by 26.2)

Resulting in:

3.106 - 1.53 - 1.986
Then rounded
3 - 2 -2

(or would that 1.53 actually round down to 1?? lol its been awhile since math class)

Is this how you do NPK calculations?? Sorry for how long it was, but Ive been racking my brains on this for a couple days now lol
Thanks!!