How do I calculate my cart abandonment rate accurately?

As a Shopify store owner, I've been obsessed with understanding why potential customers are dropping off before completing their purchases. Every abandoned cart feels like money slipping through my fingers. I'm tracking my basic metrics, but something doesn't feel right. My ad spend is solid, traffic looks good, but my conversion rate seems frustratingly low. I know cart abandonment is a universal e-commerce challenge, but I want to move beyond just seeing a percentage – I want to truly understand what's happening in my store. Are customers getting stuck at a specific point? Is my checkout process too complicated? Are my shipping costs surprising people? I need a systematic way to calculate this rate that gives me actual, actionable insights. Right now, it feels like I'm throwing darts in the dark, hoping to improve my store's performance. I want a method that not only shows me the abandonment rate but helps me diagnose why it's happening. My goal isn't just to see a number, but to transform that number into a strategy that recovers lost sales and improves my overall customer experience.