The total percentage of actual and inert ingredients listed must always equal what?

The total percentage of actual and inert ingredients listed must always equal 100%. This requirement ensures that the formulation of any pesticide or similar product is clearly defined, accounting for both the active ingredients that provide pest control efficacy and the inert ingredients that may serve various roles such as solvents, carriers, or stabilizers. This full disclosure is critical for safety, regulatory compliance, and proper usage instructions, allowing users to understand the complete make-up of the product and its concentrations. When the total percentage equals 100%, it confirms that the entire product composition is accounted for, which is crucial for safety and effectiveness in pest control applications.