Determining the causes for the decline of a specific currency, such as WTC (Waltonchain), depends on many economic, political, and technological factors. Here are some possible reasons that may lead to a decrease in the currency's price:

1. Negative news: Negative news, such as cyber attacks or legal issues related to the company or project, can lead to a decrease in investor confidence.

2. Market fluctuations: Cryptocurrency prices are characterized by high volatility and may be affected by general market changes, such as a drop in Bitcoin or Ethereum prices.

3. Economic indicators: Any changes in global or local economic policies, such as increases or decreases in interest rates, can affect asset prices, including cryptocurrencies.

4. Investor sentiment: Feelings of fear or hesitation among investors can lead to large sell-offs, causing prices to drop.

5. Changes in technology use: If there are concerns about the effectiveness of technology use or rising levels of competition from other projects.