HELLO :) COULD SOMEONE PLEASE EXPLAIN ME WHAT AM I DOING WRONG HERE!? I THOUGHT I WAS DOING IT RIGHT, BUT I AM NOT GETTING TO THE CORRECT ANSWER. PLEASE, HELP!!! THANKS IN ADVANCE!!!

6. Mary Smith took a car loan of $21,000 to pay back in 72 monthly installments at an interest rate of 12%. Compute the loan balance immediately after the 48th payment. $8,722 $9,853 $15,590 $9,312 Concept of an annuity: (A/P,i,n)=[(1(1+i)(n))/i] i= interest rate per period (expressed as a decimal) n= number of periods i=12%=12/12=1% per month t=72 months Monthly installment =21000(A/P,1%,72)=210001=21000 (A/P,1%,72)[(1(1+1)(72))/1]=1 Loan amount to be paid for 72-48 = 24 months =21000(P/A,1%,24)=210000.9999999404=20999.99875 (P/A,1%,24[(1(1+1)(24))/1]=0.9999999404