Question: User: Ed Lubbock 1234 Algebra Street
Euclid, WA
ACCOUNT INFORMATION
Account Number 7-6234712 Billing Date 10 Dec Payment Due 21 Dec
TRANSACTIONS DEBITS / CREDITS (-)
24 NOV 632174293 Rusty's Rib Palace $48.00
1 DEC 321446253 Payment -$100.00
6 DEC 333261114 Petrela Sailboats $30.00
SUMMARY
Previous Payments New Late Finance New Minimum
Balance / Credits Purchases Charge Charge Balance Payment
$421.50 -$100.00 $78.00 $30.00
Total Credit Line
Total Available Credit $1,000.00
Average Daily Balance # Days
in Billing Cycle APR Monthly
30 19.8% 1.65%
top-left: A credit card statement table with account information, transactions, and summary fields in the top-left area of the page.
1. **Problem Statement:**
Calculate the new balance on the credit card statement given the previous balance, payments, and new purchases.
2. **Given Data:**
- Previous Balance = $421.50$
- Payments / Credits = $-100.00$
- New Purchases = $78.00$
3. **Formula:**
$$\text{New Balance} = \text{Previous Balance} + \text{New Purchases} + \text{Payments / Credits}$$
4. **Calculation:**
Substitute the values:
$$\text{New Balance} = 421.50 + 78.00 + (-100.00)$$
5. **Simplify:**
$$\text{New Balance} = 421.50 + 78.00 - 100.00$$
$$\text{New Balance} = 499.50 - 100.00$$
$$\text{New Balance} = 399.50$$
6. **Interpretation:**
The new balance on the credit card after accounting for payments and new purchases is $399.50$.
7. **Note:**
The summary shows a new balance of $30.00$, which likely reflects a partial payment or minimum payment due, but mathematically the calculated new balance is $399.50$ based on the given transactions.
**Final Answer:**
$$\boxed{399.50}$$