Core functions include "traceable revenue details, retrievable data, and intuitive profit analysis". The specific function design is as follows:

I. Real-time Recording of Core Financial Data

1. Order-level revenue details: Record order number, rental/return time, billing duration, amount, payment method, and associated device information.

2. Comprehensive income and expenditure recording: Automatically distinguish between rental fees, late fees, and advertising revenue; support entry of expenditures such as equipment procurement, maintenance, and store rental.

3. Refund and abnormal order handling: Record refund details, automatically identify abnormal orders and mark them as "Pending Review".

II. Multi-dimensional Profit Statistics and Analysis

1. Device/region-based statistics: View daily/weekly/monthly revenue of individual devices and regions (country/city/street) with map visualization support.

2. Time/scenario-based statistics: Query by day/week/month/quarter/year and generate trend charts; calculate revenue by scenarios such as shopping malls and scenic spots.

3. Profit indicator calculation: Automatically compute gross profit margin, average daily revenue per device (ARPU), and return on investment (ROI) with indicator comparison support.

III. Financial Data Export and Compliance Adaptation

1. Data export and reconciliation: Support exporting Excel/CSV reports with customizable fields, adapting to financial accounting habits of different countries.

2. Compliant financial recording: Automatically calculate taxes (e.g., EU VAT 20%), retain financial data for ≥5 years, and support automatic multi-currency conversion.

IV. Operational Permissions and Security Control

1. Hierarchical financial permissions: Only financial personnel and core managers can access complete financial data.

2. Traceable operation logs: Record logs of all financial operations to ensure data security and retrievability.