Calculation Error | WordPress.org

Hello;
Where is the error in a script? Actually, my every step is correct.
I’m doing a loan calculation.

I do checkouts in many places.
Installment amount: 5000
Interest rate: 1%
Term: 10 Months
Total loan amount = ? I’m calculating how much should be…

The result should definitely be 46,728.00 TL.

I apply these steps to my coding.

if (fieldname19 === 'B') {
	var faizOrani = fieldname20 / 100;
	var aylikFaizOrani = POW(1 + faizOrani, 1 / 12) - 1;
	var kriter1b = fieldname18 * (POW(1 + aylikFaizOrani, fieldname21) - 1) / aylikFaizOrani;
    jQuery('#calculation-kriter1b').html(kriter1b);
    jQuery('.kriter1-aciklama').html('Kredi Tutarı :');
    jQuery('.kriter1-sonuc').html(kriter1b + ' TL');
}

filename20 = Interest rate (%1)
fieldname18 = Installment Amount (5000 TL)
fieldname21 = Maturity (10 Months)
————————————–

var aylikFaizOrani = (1 + 0.01)^(1/12) – 1 ≈ 0.0082672412 (This turns out to be wrong.)

————————————–
The result is always wrong.
Sample Form

• This topic was modified 3 hours, 17 minutes ago by klingbeil.