Question: What is the total amount of costs, expenses, taxes, and other deductions incurred during the operation in 2021? (eg: Number (keep two decimal places) + billion yuan)
Clues:
1. 营业收入 305.65 亿元 (Operating Revenue 305.65 billion yuan)
2. 同比下降 6.91% (Year-on-year decrease of 6.91%) under Operating Revenue
3. 归母净利润 23.24 亿元 (Net profit attributable to parent company 23.24 billion yuan)
4. 同比下降 31.20% (Year-on-year decrease of 31.20%) under Net profit
Answer: 294.56 billion yuan
Category: Information Literacy