Purchases 1,44,000
Purchases Returns 2,000
Opening stock 50,000
Sales 3,00,000
Sales Returns 10,000
Direct Expenses 66,500
Calculate closing stock??

Based on the information provided you have to calculate net income. So start with your sales minus your sales returns minus purchases plus purchase returns minus expenses equals net income.

Now take your opening stock plus net income equals Retained Earnings(or closing stock).