1. The cost of the computing power-sharing package includes the Computing Power Fee and
Electricity Usage fee (maintenance fee).
2. Computing Power Fee: The user fee is the computing power-sharing rental fee. It is calculated based on the current price of the digital currency market, the future market forecast, and the calculation of capability attenuation.
3. Electricity Usage fee: The maintenance fee is to calculate the electricity cost, operation, and maintenance of the mining machine, etc.; Days of Electricity Usage indicate how long the fee you have paid can support mining, if the Days of Electricity runs out, you need to add days for the plan to keep mining~
The Electricity Usage fee is calculated on a daily basis, Users may set the Days of Electricity Usage when first place an order, pay the electricity fee once and for all or just pay any preferred mining days (less or equal to the duration of the order,10 days minimum as default), and the remaining days under the plan duration can be paid later. Users can adjust the mining days when placing the order, and “add days” later in the Dashboard. 
Please note to add days before the maintainable days run out, otherwise, the mining and revenue of the plan may get interrupted.
For example: If you placed a 30-day plan (from Jan 1st - Jan 30th), and you paid 10 mining days in advance, then the plan would be mining from Jan 1st- Jan 10th and stop mining on Jan 11st. If you add 15 days on Jan 15th, the plan would start to mine again from Jan 15th-30th, which means there are no earnings on Jan 11th - 14th.
Note: The maintenance fee（/T/Day）for your order would stay the same during the plan duration.