EX70- Advance Trading Robot No.13 [Williams Percent Range]

This EA (Expert Advisor) uses the Williams Percent Range ($\%R$) as the primary indicator to identify reversal opportunities in the Overbought and Oversold zones. The EMA 200 serves as a trend filter. Specifically, the EA will enter a Buy trade when the price is above the EMA 200 and the $\%R$ crosses up from the Oversold zone, and will enter a Sell trade when the price is below the EMA 200 and the $\%R$ crosses down from the Overbought zone. Afterward, if the trade is moving favorably, the system enters a Follow Trend mode for continuous profit taking. However, if the trade moves unfavorably, it switches to a Reverse Trend (trade recovery) mode, which automatically increases the Lot Size (Auto Lot Size) based on a Grid system, waiting to close all trades for a profit when the total result becomes positive.