investment commission math 2025-09-20T09:28:52Z

Sweat beaded on my forehead as Nasdaq futures flashed red - my entire morning coffee turned cold while I stared at my brokerage app. That $15,000 Tesla position needed immediate adjustment, but my trembling fingers kept fumbling the mental math. Commissions, exchange fees, and that cursed SEC transaction fee danced in my head like malicious sprites. I'd already lost $427 last month from miscalculated exits, each error carving deeper into my confidence.