PL/SQL :: Model Clause Returning Phantom Value

I have created a amortization SELECT statement that amortizes loans based upon a table of loan information. The problem is this: when I run an ITERATION on numbers, the select statement returns a value but the ITERATION seems to be reading zero. This leads to a bunch of zeroes in the resultant table.

DROP TABLE MORTGAGE_FACTS

CREATE TABLE mortgage_facts (
C_USER1 CHAR(15),
C_USER9 NUMBER,
C_USER11 NUMBER,
C_USER10 NUMBER,
C_B1 NUMBER(19,2),
C_B2 NUMBER(19,2),
C_BUDGET NUMBER(19,2),
C_USER12 NUMBER(19,2));

INSERT INTO mortgage_facts VALUES ('Jones', 131828.81, 3.348, 72, 0, 0, 0, 0)

--BEGIN AMORTIZATION

SELECT
P,
C_USER1,
C_USER9,
C_USER11,
C_USER10,
C_B1,
C_B2,
[code]........

The first two results look like this:

P C_USER1 C_USER9 C_USER11 C_USER10 C_B1 C_B2 C_BUDGET C_USER12
0 Jones 131828.81 3.348 72 0 0 131828.81 2023.55
0 Jones 131828.81 3.348 1 367.8 -367.8 132196.61 2023.55

As you can see, in column C-B2, despite referencing the column C_USER12 which should have 2023.55 as a value in it, it is returning the mirror opposite of C_B1 which leads me to believe that the system is reading a ZERO in the column despite displaying 2023.55.