Update models.py

models.py

@@ -202,6 +202,6 @@ class ModelPage:
                 model_args = args[begin:begin+model_n_args]
                 model_tco = model.compute_cost_per_token(*model_args)
                 formula = model.get_formula()
-                return f"Model {current_model} has TCO {model_tco}", model_tco, formula
+                return f"Model {current_model} has a TCO of: ${model_tco}", model_tco, formula
             
             begin = begin+model_n_args