Use Average Weighted Grade to calculate Recovery and Processing cost then use these two to calculate cut off grade using the formula cof(g) = processing cost / ((net price) * recovery). Use inputs from a table. Make graphs in Python for the Cutoff Grade, Recovery, Processing Cost. cof(g) = processing cost / ((net price) * recovery) recovery = Rmax​ x (1−e^(−k⋅G)) processing cost = C0​ + C1/G​​ 1. Fixed + Grade-Dependent Cost Model processing cost = C0​ + C1/G​​ 2. Tabulated Cost Based on Grade Table equivalent for the given grade 3. Regression from Real Cost Data (Realist) Linear: C = a + bG Inverse or logarithmic: C = a + b/G or C = alog⁡(G) + b 1. Empirical Linear Model recovery = a + b × grade 2. Exponential or Logistic Model (Realist) recovery = Rmax​ x (1−e^(−k⋅G)) 3. Stepwise or Tabulated Recovery Table equivalent for the given grade