Purchases from incomplete records using payables Steps:

• Identify the change in trade payables: closing payables ($430) minus opening payables ($85) = $345 increase.
• Recognize that credit purchases = payments to suppliers (gross) + closing payables - opening payables.
• Note discounts received ($345) reduce net cost but do not directly give payments to suppliers.
• Conclude no information on payments to suppliers, so credit purchases cannot be calculated.

Not enough information.

Final answer: Not enough information.