But here i dont think maths are right. Here is what you are doing :
0_1588518406305_Capture d’écran (155).png
If you want to buy on a upward fibonacci retracement, the condition is always gona be true as : Z1-Z0 is negative, subtracting this difference this difference from Z0 actual which is the same value as the actual candle, the result is always gona be below the actual candle.
C