The specific algorithm for sending Douyin coins to anchors by e-commerce in Douyin is determined by the Douyin platform, and different e-commerce companies may have different calculation rules. Generally speaking, the following factors may affect the calculation of Douyin coins that e-commerce gives to anchors:

1. Sales of goods: Usually, the amount of Douyin coins that e-commerce gives to anchors is related to the sales of goods. E-commerce companies will calculate the number of Douyin coins based on the actual sales brought by anchors through promotion. The specific calculation method may be to determine the number of Douyin coins based on the percentage of sales, such as a certain percentage of sales as Douyin coin rewards.

2. Promotion effect: The promotion effect of anchors will also affect the amount of Douyin coins that e-commerce companies give to anchors. If the promotion of anchors brings a lot of sales and user conversions to e-commerce companies, then e-commerce companies may give more Douyin coins as encouragement and rewards to anchors.

3. Cooperation agreement: There may be a specific cooperation agreement or contract between the Douyin platform and e-commerce companies, which includes a reward plan for sending Douyin coins to anchors. These agreements may stipulate specific algorithms and standards for calculating the number of Douyin coins.

It should be noted that the specific Douyin coin algorithm may be adjusted due to updates to the Douyin platform or changes in e-commerce policies. Therefore, if you are a streamer or someone related to Douyin e-commerce, it is recommended to consult specific partners or the Douyin platform to obtain the latest information on Douyin coin rewards and specific calculation methods.