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Jonathan Mertz - "Just Talking About Whatever"Author: Jonathan Mertz
Hey, it's Jonathan Mertz and I am here just sharing my thoughts on life and interests. What's on your mind? Let me know: Twitter: @jonathanmertz email: jonathan@jonathanmertz.com Language: en-us Genres: Society & Culture Contact email: Get it Feed URL: Get it iTunes ID: Get it |
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Master the Math of Shopping – Quick Hacks for Discounts
Thursday, 29 January, 2026
Do you find yourself fumbling with your phone calculator while standing in the middle of a store aisle? In this episode, we dive into functional math hacks that will change the way you shop forever. Many people struggle with calculating percentages on the fly, often taking the long route to find a final price. We break down a simple "remainder method" that allows you to calculate discounts in a single step.What You’ll Learn in This Episode:• The Shortcut to Savings: Why you should stop calculating the discount amount and start focusing on the remainder. For example, if an item is 30% off, you simply multiply the price by 0.7 (the 70% you are actually paying) to get your total instantly.• Real-World Application: We walk through a calculation for a $25 item, comparing the old two-step method to this lightning-fast shortcut.• The "One-Step" Sales Tax Hack: Learn how to calculate your final total, including tax, without adding numbers separately. Discover why multiplying your total by 1.06 (for a 6% tax rate) is the most efficient way to see your final cost at the register.Stop overcomplicating your shopping trips and start using these math advantages to keep your budget on track.The Hack: Instead of calculating what you're saving, calculate what you're paying.• 30% OFF means you are paying 70% of the price.• The Math: If that shirt is $25, just multiply by 0.7.• The Result: $17.50 in one simple step!Bonus Pro-Tip for the Checkout Line: 🛒 Don't wait for the receipt to know your total. To add sales tax (like Kentucky’s 6%) in one go, just multiply your subtotal by 1.06. That 17.50item?It’sexactly∗∗18.55** after taxes.
