Answer: $582.15
Step-by-step explanation:
Total amount owed in 6 months = 6,300 * ( 1 + 0.5%/12)⁶
= $6,315.77
Interest increases to 17.3%.
Amount owed at the end of the year:
= 6,315.77 * (1 + 17.3%/12)⁶
= $6,882.16
Interest owed = Amount owed end of year - Beginning balance
= 6,882.16 - 6,300
= $582.15