making 360ml of 22.4% solution from flakes

I got some Sodium Chlorite 80% flakes at Amazon ( www.amazon.com/gp/product/B084WMNPBV ). I also got a set of 6 small 60 ml bottles (  www.amazon.com/gp/product/B0971NMSJX  ).  To fill the 6 bottles, I would like to make exactly 360 ml of 22.4% solution.  

My question is, how many grams of flakes should I start with to end up with 360 ml of 22.4% solution?  And I guess, the amount of water would be useful as well -- although presumably if I start with the right amount of flakes, I would just add water till I get to 360 ml.

I tried using an online "percent solutions" calculator to figure this out.  But in  case my calculations are wrong, don't want to muddy the water with incorrect values.  

How many grams of flakes do I start with if I want to end up with 360ml of 22.4% solution?

Thanks!

mmsinfo.org/infosheets/What_is_MMS_and_How_to_Make_it.pdf

Although I don't know how much NaCl02 I want to use (since that's what I'm trying to figure out), nor do I know how much water I want to use (I only know that the *total* volume needs to be 320ml -- I'm assuming that the NaClO2 will take up some of the volume), I was able to figure out what I need using the first table.

From the 4th column, 360ml is 44% from 250ml to 500ml. So I need to calculate 44% between 85.4g and 170.8g in the first column. That should be 123g.

So, with 123g of flakes, and filling water to 360ml, I should get a 22.4% solution.

Thanks!

A simple formula to make MMS
Just use the number 2.57

Multiply the amount of Sodium Chlorite you want to use by 2.57 and the answer will be how much water you need. (weight) 454 x 2.57 = 1166.78 (1167)

Divide the amount of water you want to use by 2.57 and this is how much Sodium Chlorite you need. (weight) 1167 ÷ 2.57 = 454 

Using this wt/wt method, you do not know the total amount of SCS you will get. Not a problem for me, because I use a larger than necessary bottle.