Given the following information, calculate the amount credited and the outstanding balance.
Invoice: $1,000
Terms: 3/10, n/30
Invoice date: May 5
Payment amount: $800
Date paid: May 9
A. $724.74, $275.26
B. $824.74, $175.26
C. $265.26, $624.74
D. $176.00, $824.00
my answer is B