What am I doing wrong. why didnt it zero out?

Loan Amount Annual Interest Rate Loan Period (years) Payment 50,000.00 0.08 10.00 7,451.47 Year Beginning PMT Interest Principal Ending Balance 0 $50,000.00 50000 1 $50,000.00 $7,451.47 $4,000.00 $3,451.47 $46,548.53 2 $46,548.53 $7,451.47 $3,723.88 $3,727.59 $42,820.94 3 3 $42,820.94 $7,451.47 $3,425.68 $4,025.79 $38,795.15 4 $38,795.15 $7,451.47 $3,103.61 $4,347.86 $34,447.29 5 $34,447.29 $7,451.47 $2,755.78 $4,695.69 $29,751.60 6 $29,751.60 $7,451.47 $2,380.13 $5,071.34 $24,680.26 7 $24,680.26 $7,451.47 $1,974.42 $5,477.05 $19,203.21 8 $19,203.21 $7,451.47 $1,536.26 $5,915.21 $13,288.00 9 $13,288.00 $7,451.47 $1,063.04 $6,388.43 $6,899.57 10 $6,899.57 $7,451.47 $551.97 $6,899.50 $0.06