What exact cost means for a loan
A loan's cost is not one number. It is a stack of rates, fees, and timing rules that has to add up the same way every time.
Ask three systems for the cost of the same loan and you often get three answers. The rate sits in one place, the fees in another, and the timing rules live in a spreadsheet someone updated last quarter. Compute removes the guesswork by treating the product as a single definition and deriving the cost from it.
One definition, one number
A product definition holds the rate, the fee schedule, the rounding rules, and the calendar the loan follows. Compute reads that definition and produces the full breakdown: principal, interest, fees, and the effective rate a regulator would check.
Why it has to be exact
Off by a cent is not a rounding nicety in lending. It is the difference between a compliant disclosure and a fine. Compute shows its working for every figure, so the number you publish is the number you can defend.