Billing Example
Last updated: 2025-11-03 15:52:50
This document uses a billing example of a CKafka instance to analyze the cost structure and calculation method, helping you understand the composition of CKafka instance costs.
Billing Scenario
Suppose a user purchased an hourly-billed Pro Edition instance in the Guangzhou region at 13:20:00 on 2024/05/15. After using it for a period of time, the user upgraded its specification at 10:00:00 on 2024/05/20 as it could not meet business requirements. The specifications before and after upgrade are as follows:
Specification | Pre-Upgrade Specification | Post-Upgrade Specification |
Peak bandwidth | 240 MB/s | 320 MB/s |
SSD Cloud Block Storage | 1000 GB | 3000 GB |
Partition | 1700 | 1800 |
Since the user plans to use the instance long-term, it was converted to an annual and monthly subscription instance on 2024/05/25 10:30:00 with a purchase duration of 3 months.
Billing Components
Note:
Note: The following prices are for reference only and not the official website actual price. The unit price may vary by region, promotion, or policy. Refer to the actual unit price for details.
The actual fee generated by the instance from May to August is as follows:
Duration | Actual Billing Duration | Billing Mode | Billing Composition | Total Cost |
2024/05/15 13:20:00~ 2024/05/20 10:00:00 | 2024/05/15 13:00:00~ 2024/05/20 10:00:00 117 hours in total | Hourly billing | Peak bandwidth (240 MB/s) Unit price = 0.96 + (240 - 120) / 20 × 0.08 = 1.44 USD/hour Total price = 1.44 × 117 = 168.48 USD Disk (1000 GB) Unit price = 0.0003 USD/100GB/hour Total price = 0.0003 × 1000 × 117 = 35.1 USD Partition (1700) Unit price = 0.05 USD/100/hour Billing quantity = 1700 - 1600 = 100 (1600 partitions are free in the package, exceeding 100 requires purchase) Total price = 0.05 × (100/100) × 117 = 5.85 USD | 168.48 + 35.1 + 5.85 = 209.43 USD |
2024/05/20 10:00:00~ 2024/05/25 10:30:00 | 2024/05/20 10:00:00~ 2024/05/25 11:00:00 121 hours in total | Hourly billing | Peak bandwidth (320 MB/s) Unit price = 1.83 USD/hour Total price = 1.83 × 121 = 221.43 USD Disk (3000 GB) Unit price = 0.0003 USD/hour Total price = 0.0003 × 3000 × 121 = 108.9 USD Partition (1800) The package includes 1800 free partitions at no additional charge. | 221.43 + 108.9 = 330.33 USD |
2024/05/25 10:30:00–2024/08/25 10:30:00 | 3 Months | Yearly/Monthly Subscription | Peak bandwidth (320 MB/s) Billing rates = 1,200 USD/month Total price = 1200 × 3 = 3600 USD Disk (3000 GB) Unit price = 0.16 USD/GB/month Total price = 0.16 × 3000 × 3 = 1440 USD Partition (1800) The package includes 1800 free partitions at no additional charge. | 3600 + 1440 = 5040 USD |
Total cost = 209.43 + 330.33 + 5040 = 5579.76 USD
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