Previous balance = $291.96 
 Payments/credits = $45.00 
Unpaid balance = $ 291.96 - $45.00 = $ 246.96 
Monthly Interest rate = 1.5 %
Finance charge = 1.5 % of $ 246.96= $3.70
Total balance to be paid when Finance charge is included = $ 246.96 + $3.70= $ 250.66
 New purchases = $103.98 
 New balance = $ 250.66 + $103.98 = $ 354.64