Not trying to evade the question, but pricing usually depends both on the source and the quantity of either product.
The "treatment-costs" for both products are reasonably comparable. However, a price-comparison may be irrelevent in the respect that Clipper has a better fit under transient-water conditions and/or when response-time requirements do not favor fluridone's slow and lengthy contact-time requirements - BUT fluridone's extended residual-activity may be favored under static-water conditions.