How to compute Fibonacci retracement levels of a swing

1. Enter swing high

   "Swing high" is the top of the move you want retraced. Pick the actual extreme of the leg you're studying — not an arbitrary candle high.

2. Enter swing low

   "Swing low" is the bottom of the same move. The tool computes from high downward, so high should be > low for the levels to make sense as retracements of an up-move.

3. Press Run

   Result returns levels for ratios 0, 0.236, 0.382, 0.5, 0.618, 0.786, 1, each with the corresponding price = high − (high − low) × ratio. Output prices are rounded to 6 decimals.

4. How to use the levels

   0 = swing high (no retracement); 1 = swing low (full retracement); 0.5 and 0.618 are the most-watched bands. The tool is a chart helper — not a buy/sell signal.