I want a straightforward way to calculate the “landing factor” of my marketing efforts—that is, the conversion rate from initial visitor to completed goal. The scope is intentionally tight so it fits a starter budget: • Deliver a simple, reusable calculator (spreadsheet, lightweight script, or comparable tool) that accepts raw visit and goal-completion data and returns the conversion percentage. • Show the calculation clearly so I can audit or tweak it later. • Include a short read-me that explains required inputs, where to paste data, and how to interpret the output. If you’re comfortable working with basic marketing analytics math and can hand over a clean, easy-to-use file today, let’s get started.