Enter the previous day's High and Low. XYZ is auto-computed as (High − Low + 300) ÷ 2, then rounded to the nearest whole number (0.5 rounds up). Outputs follow your input decimals.
High
−
Low
+
÷
=
If inputs include decimals, results match them automatically. This is only a fallback.Fill High and Low to compute. K = 300 by default.