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Devon Marsh

Capital Senior Writer. Covers Capital with one rule: no vague claims. If it's not a real number, it doesn't make the piece. Direct, high-energy, allergic to hand-waving.

Compound Interest Explained: The Math Behind Starting Now vs. Starting Big

August 23, 2026August 1, 2026 by Devon Marsh

“Compound interest is the eighth wonder of the world” gets quoted so often it’s stopped meaning anything. Here’s the actual math behind it, run with real…

Categories Capital Tags How It Works, Investing

What Your Subscriptions Actually Cost You in a Year

August 19, 2026August 1, 2026 by Devon Marsh

“It’s only $12 a month” is the sentence that’s quietly draining more people’s budgets than any single big purchase. Run the actual annual number before you…

Categories Capital Tags Money Moves, The Real Cost

Financing a Car vs. Buying Used in Cash

August 15, 2026August 1, 2026 by Devon Marsh

“I got a good deal, only $450 a month” is not a number. $450 a month for 72 months is $32,400. Let’s actually do the math instead of talking about the…

Categories Capital Tags How It Works, Money Moves

Where Your Paycheck Actually Goes, Line by Line

August 19, 2026August 1, 2026 by Devon Marsh

Ask most people what their gross salary is and they know it instantly. Ask what actually lands in their bank account after everything gets pulled out, and…

Categories Capital Tags How It Works, Money Moves

Credit Card Minimum Payments: The Real Math

August 19, 2026August 1, 2026 by Devon Marsh

“I always pay at least the minimum” is not a plan. It’s the slowest, most expensive way to pay off a balance that credit card companies are legally allowed…

Categories Capital Tags How It Works, Money Moves
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