Jacks 321 and Hydrobuddy

I'm confused as to how to calculate the elemental breakdown of my formula.

I'm using 1G concentrates. 300G each. I mix one set in advance of the set I'm using. I mix up 2-3 5G buckets a day. One of my current ratios is Jacks @ 375ppm CalNit @ 280ppm. About 1.3EC with a slightly higher ratio of CN to Jacks, about .74 instead of .67.

My brainfart concerns trying to understand the numbers. When I plug it all into Hydrobuddy(150-52-216-116-63 is what I put in for targets to more or less match Jacks) I get 469 Jacks and 220 CN, a ratio of .47. Works out to be 3.78G of Jacks and 2.4 of CN, which is a .63 ratio. What am I not getting??

I mix by ppms and it seems to work well. I'm just trying to understand how this all works so I can start balancing my Ca and provide the correct amount of MKP.

Here are my settings in Hydrobuddy:





(It already converted P2O5 to P and K2O to K)


Here is the breakdown by ppm

You know what BF? It was me being bad at math. I've been reverse engineering my menus and I had my factors wrong and also I didn't account for S. I'm pretty spot on now, thanks!