[1.12.2] Custom Furnace GUI Progress Arrow problems

Hey, I am trying to create a custom Furnace block in my mod and I can't seem to figure out the issue with the progress arrow. It definitely works fine, but my values are wrong somewhere resulting in an always full progress arrow. Could anyone point me in the right direction here?

Full source code is on github specifically these files regarding the machine: https://github.com/HHServers/TestMod/tree/master/src/main/java/io/github/hhservers/hennyhex/objects/blocks/machines/hennifier

I took this code straight from the vanilla furnace GUI class but clearly one of my values is causing it to go wrong

private int getCookProgressScaled(int pixels)
    {
        int i = this.tileEntity.getField(2);
        int j = this.tileEntity.getField(3);
        return j != 0 && i != 0 ? i * pixels / j : 0;
    }

Any help would be appreciated